单词	chain
释义	noun | verb chainchain1 /tʃeɪn/ ●●● S3 W2 noun Etymology ETYMOLOGYchain1 Origin: 1200-1300 Old French chaeine, from Latin catena Collocations COLLOCATIONS► a hotel/restaurant/retail etc. chain  Leslie works for a major hotel chain. ► chain of events  the chain of events that led to World War I ► link in the chain  The salesmen are just one link in the chain of distribution (=part of a process). ► a human chain  They quickly formed a human chain (=a line of people who pass things from one person to the next) to move the equipment. ► a chain of atoms/molecules etc.  a chain of amino acids ► in chains  He was led away in chains. 1JOINED RINGS [countable, uncountable] a series of rings, usually made of metal, connected together in a line, used as jewelry or for fastening things, supporting weights, etc.:  a gold chain a chain and a padlock2STORES/HOTELS [countable] a number of stores, hotels, restaurants, etc. owned or managed by the same company or person: chain of a chain of health clubsa hotel/restaurant/retail etc. chain Leslie works for a major hotel chain.3CONNECTED EVENTS/IDEAS [countable] a connected series of events or actions, especially ones which lead to a final result: chain of a complicated chain of reasoning the chain of events that led to World War I The salesmen are just one link in the chain of distribution (=part of a process).4CONNECTED LINE [countable] people or things which are connected or next to each other forming a line:  the Andean mountain chain They quickly formed a human chain (=a line of people who pass things from one person to the next) to move the equipment.a chain of atoms/molecules etc. a chain of amino acids5PRISONERS [countable usually plural] metal chains fastened to the legs and arms of prisoners, to prevent them from escaping:  He was led away in chains.6MEASURE [countable] a measurement of length, used in past times7the chains of something literary things such as rules or unfair treatment that limit your freedom:  the chains of colonialism → see also chain of command, food chain, key chain[Origin: 1200–1300 Old French chaeine, from Latin catena] noun | verb chainchain2 verb Verb Table VERB TABLE chain Simple Form Present I, you, we, they chain he, she, it chains Past I, you, he, she, it, we, they chained Present perfect I, you, we, they have chained he, she, it has chained Past perfect I, you, he, she, it, we, they had chained Future I, you, he, she, it, we, they will chain Future perfect I, you, he, she, it, we, they will have chained Continuous Form Present I am chaining he, she, it is chaining you, we, they are chaining Past I, he, she, it was chaining you, we, they were chaining Present perfect I, you, we, they have been chaining he, she, it has been chaining Past perfect I, you, he, she, it, we, they had been chaining Future I, you, he, she, it, we, they will be chaining Future perfect I, you, he, she, it, we, they will have been chaining 1to fasten someone or something to something else using a chain, especially in order to prevent a person from escaping or a thing from being stolen:  The gates were chained shut.chain somebody/something to something I chained my bicycle to a tree.chain somebody/something up The hostages were chained up and kept in a dark room.chain somebody/something together Protesters chained themselves together to block the trucks.2be chained to something to have your freedom restricted because of a responsibility you cannot escape:  With a sick husband, Sandy’s chained to the house all day.
随便看	poltergeist poly- polyandrous polyandry polyatomic ion polycarbonate polyester polyethylene polygamous polygamy polygene polygenic polyglot polygon polygonal polygraph polyhedron polymath polymer polymerize polymorphous polynomial polyp polypeptide polyphonic

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