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单词 ecosystem
释义
ecosysteme‧co‧sys‧tem /ˈiːkəʊˌsɪstɪm $ ˈiːkoʊ-/ ●○○ noun [countable] Examples
EXAMPLES FROM OTHER DICTIONARIES
  • Many species of burrowing insects are essential for maintaining a healthy soil ecosystem.
  • The bay has a very complex and delicate ecosystem.
  • The rainforest is a self-supporting ecosystem.
EXAMPLES FROM THE CORPUS
  • By the end of September I seemed to have been the only person in the ecosystem who had not seen a wolf.
  • If the dynamics of the whole ecosystem fail in this respect, changes will inevitably occur, until finally self-consistency is achieved.
  • Other members of marine ecosystems have also died as a result of red-tide blooms.
  • The failure of the dialogue to clarify the effects of population growth on ecosystems and mineral supplies has other causes.
  • The issue was whether or not the bacteria in his body would contaminate the local ecosystem.
  • These new plants could regenerate quickly, so they took over the ecosystem.
  • We need to be aware, however, that the school environment is a delicate ecosystem, highly sensitive to political whim.
  • Where there is an ecosystem, there are local experts.
Thesaurus
THESAURUS
the air, water, and land on Earth, which is affected by man’s activities: · We need to do more to protect the environment.· How much does air travel damage the environment?
technical all the animals and plants that exist in a place, considered as a single system with parts that depend on each other: · the island’s fragile ecosystem· The rapid decline in the number of great sharks is disrupting the marine ecosystem.
the natural home of an animal or plant: · The tree can grow to be 120 feet tall in its natural habitat.
technical the Earth’s surface and atmosphere where animals and plants can live: · Scientists are monitoring changes in the global biosphere.
the scientific study of the way in which the animals, plants, and natural features of a place affect and depend on each other: · She’s studying marine ecology.
adjective [only before noun] relating to the environment or to protecting the environment: · Voters are becoming more concerned about green issues.· The party is keen to demonstrate its green credentials (=show that it thinks the environment is important).
prefix relating to the environment and protecting the environment: · eco-friendly products (=which do not harm the environment)· eco-tourism (=which does not harm the environment)· eco-warrior (=someone who protests to try to save the environment)· eco-sensitive land (=where the environment is easily damaged)
Longman Language Activatorthe natural world that people, animals, and plants live in
the air, water, and land where people, animals, and plants live, and the way all these things depend on each other so that life can continue: · Many modern farming methods are highly damaging to the environment.· Young people between 18 and 30 tend to be much more concerned about the environment than the older generation.· Ask your local MP what he or she intends to do to help protect the environment.
the animals, plants etc that exist in a particular area or type of area and the way they all depend on each other in order to live, considered as a single separate part of the environment: · The bay has a very complex and delicate ecosystem.· The rainforest is a self-supporting ecosystem.a marine/forest/riverbank etc ecosystem: · Many species of burrowing insects are essential for maintaining a healthy soil ecosystem.
the way in which plants, animals, and the natural features of a place affect and depend on each other, or the scientific study of this: · Plans to build a new airfield could threaten the delicate ecology of the island.· She is giving a lecture about the natural history and ecology of the sea shore.
the place and natural conditions that a plant, animal, etc lives or grows best in: · Further building development would threaten valuable badger and red squirrel habitats.· Suburban gardens can provide habitats for many forms of wildlife.· Ancient habitats such as grasslands, bogs, and wetlands are rapidly disappearing.
the natural system in which plants, animals, insects etc feed on each other, for example when a particular bird feeds on a particular insect, which feeds on a particular plant etc: · The oil spill has killed off billions of microscopic sea plants, thus threatening marine life further up the food chain.· Pesticides destroy insects that are an important part of the food chain for several species of songbird.
WORD SETS
aerobic, adjectiveafterbirth, nounalgae, nounalimentary canal, nounamber, nounameba, nounamino acid, nounamoeba, nounanaconda, nounanaerobic, adjectiveandrogynous, adjectiveantibody, nounantigen, nounantitoxin, nounappendage, nounarm, nounarmour, nounasexual, adjectiveassimilation, nounatrophy, verbaviary, nounbacteria, nounbacteriology, nounbarnacle, nounbile, nounbinocular vision, nounbio-, prefixbiochemistry, nounbiodegradable, adjectivebiodiversity, nounbiohazard, nounbiological, adjectivebiological clock, nounbiology, nounbiomass, nounbiome, nounbiosphere, nounblind, nounbrain, nounbreathe, verbbreed, verbbreed, nounbreeding, nounbristle, nounbulb, nouncapsule, nouncarbohydrate, nouncarbon dioxide, nouncarnivore, nouncell, nouncellular, adjectivecellulose, nouncentral nervous system, nouncervical, adjectivecholesterol, nounchromosome, nouncirculation, nouncirculatory, adjectiveclass, nounclone, nouncold-blooded, adjectiveconceive, verbconch, nounconnective tissue, nouncopulate, verbcoral reef, nouncornea, nouncoronary, adjectivecorpuscle, nouncortex, nouncortisone, nouncowrie, nouncrab, nouncrawfish, nouncrayfish, nouncreature, nouncross, verbcrossbreed, nounculture, nouncytoplasm, noundecay, verbdecay, noundecompose, verbdefecate, verbdenizen, noundextrose, noundiaphragm, noundigest, verbdigestion, noundigestive, adjectiveDNA, noundorsal, adjectivedry rot, nounduct, noundwarf, noundwarf, adjectiveecological, adjectiveecology, nounecosystem, nounegg, nounejaculate, verbembryo, nounembryonic, adjectiveenzyme, nounepidermis, nounevolution, nounevolutionary, adjectiveexcrement, nounexcrescence, nounexcrete, verbexcretion, nounexhale, verbexoskeleton, nounextinction, nounfaeces, nounfamily, nounfang, nounfat, nounfatty acid, nounfauna, nounfeces, nounfeed, verbfemale, adjectivefemale, nounferment, verbferment, nounfertile, adjectivefertility, nounfertilize, verbfission, nounflank, nounflatulence, nounflesh, nounfleshy, adjectiveflightless, adjectiveflora, nounfoetal, adjectivefoetus, nounfoliage, nounfossil, nounfreak, nounfreshwater, adjectivefructose, noungamete, nounganglion, noungene, noungene pool, noungenera, genetic, adjectivegenetic code, noungenetic engineering, noungenetic fingerprinting, noungenetics, noungenome, noungenus, noungestation, noungland, nounglandular, adjectiveglucose, noungluten, noungonad, noungrass snake, noungrow, verbgrowth, nounhabitat, nounhaemoglobin, nounhearing, nounheart, nounhemisphere, nounherbivore, nounhereditary, adjectiveheredity, nounhermaphrodite, nounhibernate, verbhistamine, nounhoming, adjectivehormone, nounhost, nounimpregnate, verbimpulse, nounincubate, verbindigenous, adjectiveinfected, adjectiveinfertile, adjectiveinfest, verbingest, verbinhale, verbinseminate, verbinsensate, adjectiveinsulin, nounintegument, nounintercourse, nouninterferon, nounintestine, nouninvertebrate, nouninvoluntary, adjectiveiris, nounjaw, nounjelly, nounkidney, nounkrill, nounlactate, verblactation, nounlactic acid, nounleech, nounleg, nounlesser, adjectivelichen, nounlife, nounlife cycle, nounlife form, nounligament, nounlimb, nounlimpet, nounlipid, nounliver, nounliving fossil, nounlocomotion, nounlymph, nounlymph node, nounmale, adjectivemale, nounmammal, nounmandible, nounmate, nounmate, verbmembrane, nounmetabolism, nounmetabolize, verbmetamorphosis, nounmicrobe, nounmicrobiology, nounmicroorganism, nounmicroscopic, adjectivemigrate, verbmigratory, adjectivemiscarriage, nounmolar, nounmorphology, nounmotor, adjectivemould, nounmouth, nounmucous membrane, nounmucus, nounmulticellular, adjectivemuscle, nounmuscular, adjectivemutant, nounmutate, verbmutation, nounnatural history, nounnatural selection, nounnature, nounneck, nounnectar, nounnerve, nounnervous, adjectivenervous system, nounneural, adjectiveneuro-, prefixneurology, nounnode, nounnose, nounnostril, nounnucleic acid, nounnucleus, nounnutrient, nounnutriment, nounoesophagus, nounoestrogen, nounolfactory, adjectiveoptic, adjectiveorgan, nounorganic, adjectiveorganic chemistry, nounorganism, nounorifice, nounossify, verbosteo-, prefixoutgrowth, nounova, ovary, nounoverwinter, verboviduct, nounoviparous, adjectiveovulate, verbovum, nounparasite, nounpathogen, nounpedigree, nounpelvic, adjectivepelvis, nounpenile, adjectivepenis, nounpepsin, nounperiod, nounperspiration, nounperspire, verbphotosynthesis, nounphylum, nounpigment, nounpigmentation, nounplankton, nounplasma, nounpollinate, verbpostnatal, adjectivepregnancy, nounpregnant, adjectivepremature, adjectiveprenatal, adjectiveproduct, nounproliferation, nounpropagate, verbprotein, nounprotoplasm, nounprotozoan, nounpuberty, nounpulmonary, adjectivepulp, nounpulsation, nounputrefy, verbputrid, adjectivered blood cell, nounregurgitate, verbrenal, adjectivereproduce, verbreproduction, nounreproductive, adjectiverespiration, nounrespiratory, adjectiverespire, verbretina, nounroot, nounrot, verbrot, nounruff, nounsac, nounsaliva, nounsalivary gland, nounsalivate, verbsaltwater, adjectivescale, nounscallop, nounscaly, adjectivesebaceous, adjectivesecrete, verbsecretion, nounsemen, nounsense organ, nounsensory, adjectiveserum, nounsex, nounsex, verbsexless, adjectivesexual intercourse, nounsheath, nounshell, nounsibling, nounskeletal, adjectiveskeleton, nounskin, nounskull, nounspasm, nounspasmodic, adjectivespecies, nounspecimen, nounsperm, nounspiderweb, nounspinal cord, nounspine, nounspineless, adjectivestarch, nounstem cell, nounstimulate, verbstimulus, nounstrain, nounsubject, nounsubspecies, nounsucker, nounsucrose, nounsweat, verbsweat, nounsweat gland, nounsymbiosis, nounsystemic, adjectivetail, nountaxonomy, nounteeth, testosterone, nountest-tube baby, nountissue, nountrachea, nountube, noununicellular, adjectiveurethra, nounuric, adjectiveurinate, verburine, nounvariety, nounvector, nounvein, nounvenom, nounvenomous, adjectiveventricle, nounvertebra, nounvertebrate, nounvivisection, nounwarm-blooded, adjectivewean, verbwildlife, nounwindpipe, nounyolk, noun
Collocations
COLLOCATIONS FROM THE CORPUSADJECTIVE
· Most threatening of these for the marine ecosystem is the exposure to increased ultra-violet radiation through the depletion of the ozone layer.· Other members of marine ecosystems have also died as a result of red-tide blooms.
· Figure 8 illustrates the differences between a natural ecosystem and an urban-industrial ecosystem.· At one extreme are pure, natural ecosystems like an alpine meadow or a mangrove swamp.· Nature's Services: societal dependence on natural ecosystems.· Seen in the right light, a robust industrial ecosystem is an extension of the natural ecosystem of the biosphere.· Yet all of these new ideas threaten that natural desert ecosystem, Evans says.
NOUN
· For example, below-ground resource allocation is driven by nitrogen or water availability in many forest ecosystem models.
all the animals and plants in a particular area, and the way in which they are related to each other and to their environmentecology
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