| 释义 |
verb | noun decreasedecrease1 /dɪˈkris, ˈdikris/ ●●○ verb [intransitive, transitive] ETYMOLOGYdecrease1Origin: 1300-1400 Anglo-French decreistre, from Latin decrescere, from crescere to grow VERB TABLEdecrease |
| Present | I, you, we, they | decrease | | he, she, it | decreases | | Past | I, you, he, she, it, we, they | decreased | | Present perfect | I, you, we, they | have decreased | | he, she, it | has decreased | | Past perfect | I, you, he, she, it, we, they | had decreased | | Future | I, you, he, she, it, we, they | will decrease | | Future perfect | I, you, he, she, it, we, they | will have decreased |
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| Present | I | am decreasing | | he, she, it | is decreasing | | you, we, they | are decreasing | | Past | I, he, she, it | was decreasing | | you, we, they | were decreasing | | Present perfect | I, you, we, they | have been decreasing | | he, she, it | has been decreasing | | Past perfect | I, you, he, she, it, we, they | had been decreasing | | Future | I, you, he, she, it, we, they | will be decreasing | | Future perfect | I, you, he, she, it, we, they | will have been decreasing |
► decreasing in number The moose are decreasing in number. ► decrease the chances of Birth control pills decrease the chances of getting pregnant. THESAURUSto become less in number, size, or amount, or to make something do this► decreaseto become less in number, size, or amount, or to make something do this: Sales in Japan steadily decreased last year. ► go down to become lower or less in level, amount, size, quality, etc.: The income of ordinary workers has been going down. ► fall/drop to decrease to a lower level or amount, especially when this happens quickly: Sales have dropped 15% this year. ► plunge/plummet to decrease suddenly and by a very large amount: It was warm during the day, but at night temperatures plummeted to near zero. ► decline to decrease in quality, quantity, or importance: The company’s earnings declined 17% last year. ► diminish to become smaller or less important: Union membership diminished from 30,000 at its height to just 750 today. ► dwindle to gradually become fewer or smaller: The team’s lead had dwindled to only two points. to become less in number, size, or amount, or to make something do this OPP increase: Sales in Japan steadily decreased last year.decrease to The population has decreased to 5.2 million. The moose are decreasing in number. Birth control pills decrease the chances of getting pregnant. [Origin: 1300–1400 Anglo-French decreistre, from Latin decrescere, from crescere to grow]—decreasing adjectiveTHESAURUSgo down – to become lower or less in level, amount, size, quality, etc.: The income of ordinary workers has been going down.fall/drop – to decrease to a lower level or amount, especially when this happens quickly: Sales have dropped 15% this year.plunge/plummet – to decrease suddenly and by a very large amount: It was warm during the day, but at night temperatures plummeted to near zero.decline – to decrease in quality, quantity, or importance: The company’s earnings declined 17% last year.diminish – to become smaller or less important: Union membership diminished from 30,000 at its height to just 750 today.dwindle – to gradually become fewer or smaller: The team’s lead had dwindled to only two points. verb | noun decreasedecrease2 /ˈdikris/ ●●○ noun [countable] adjectives► a significant/substantial/marked decrease There has been a significant decrease in the number of traffic accidents. ► a dramatic/sharp decrease (=a very big and surprising decrease) The figures show a dramatic decrease in violent crime. ► a slight/small decrease The company reported a slight decrease in profits. ► a steady/gradual decrease There has been a steady decrease in the number of visitors to the island. ► a general/overall decrease The graph shows a general decrease in fuel prices. The firm has experienced an overall decrease in production. ► a large/big decrease There has been a large decrease in the amount of water resources available. the process of reducing something, or the amount by which it reduces SYN reduction OPP increase: decrease in Patients experienced a slight decrease in appetite after using the drug. There has been a significant decrease in the number of unemployment claims.decrease of Revenue figures show a decrease of 5% over last year.COLLOCATIONSadjectivesa significant/substantial/marked decrease There has been a significant decrease in the number of traffic accidents.a dramatic/sharp decrease (=a very big and surprising decrease) The figures show a dramatic decrease in violent crime.a slight/small decrease The company reported a slight decrease in profits.a steady/gradual decrease There has been a steady decrease in the number of visitors to the island.a general/overall decrease The graph shows a general decrease in fuel prices. The firm has experienced an overall decrease in production.a large/big decrease There has been a large decrease in the amount of water resources available. |