decrease

英 [dɪˈkriːs] 美 [ˈdiː.kriːs]
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  • n. 减少,减小;减少量
  • vi. 减少,减小
  • vt. 减少,减小
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记忆方法

1、de- "away from" + creas- + -e.
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词族 · decrease

词形变化与派生词,串起来记

中文词源

decrease 减低

de-, 向下。-cre, 创造,增加,词源同create, crescent.

英语词源

decrease
decrease: [14] Etymologically, decrease means ‘ungrow’. It comes from de(s)creiss-, the present stem of Old French de(s)creistre, which was a descendant of Vulgar Latin discrēscēre. This was an alteration of Latin dēcrēscēre, a compound verb formed from the prefix dē-, denoting reversal of a previous condition, and crēscēre ‘grow’ (source of English crescent and a wide range of other words).
=> crescent, croissant, increase
decrease (v.)
late 14c., from Anglo-French decreiss-, present participle stem of decreistre, Old French descroistre (12c., Modern French décroître), from Latin decrescere "to grow less, diminish," from de- "away from" (see de-) + crescere "to grow" (see crescent). Related: Decreased; decreasing.
decrease (n.)
late 14c., "detriment, harm;" early 15c. as "a becoming less or smaller," from Anglo-French decres; see decrease (v.).

权威例句

1. If the egg is not fertilised oestrogen and progesterone decrease.
如果卵细胞没有受精,雌激素和黄体荷尔蒙就会下降。
2. The prices of polymers and suchlike materials will decrease.
聚合物及类似材料的价格会下降。
3. The demand for tea is on the decrease ( each year ).
茶叶的需求量 ( 逐年 ) 递减.
4. Last year there was a 20 % decrease in his earnings.
去年他的收入减少了20%.
5. This shows a slight decrease on the numbers of the previous month.
这表明比前一个月的数目略有减少.

词语辨析

【diminish, dwindle, lessen, decrease, reduce】
这组词都有“减少,变少”的意思,其区别是:
diminish: 侧重大小数量和重要性的不断减小,强调减小的部分。
dwindle: 与decrease同义,指逐渐减小,但强调变得越来越少终至全无。
lessen: 普通用词,与decrease近义。指数目、程度、价值、实力等的减少。
decrease: 指逐渐地、不断地减少。
reduce: 普通用词,含义广。指数量、程度的降低或减少。

【diminish, decline, alleviate, decrease, reduce】
这组词都有“减少,减轻”的意思,其区别是:
diminish: v.指因为不断消耗,在数量方面缓慢减少,也指在素质或者价值的下降。
• The supply of oil has diminished because of the war. 由于战争石油的供应减少了。
decline: v. (数目、价格、比率)下降;谢绝,婉言推辞;衰退,衰落。
• Last year, the crime rate in Chicago has sharply declined. 去年芝加哥的犯罪率明显下降。
• He declined our invitation to dinner. 他婉拒了我们请他吃饭的邀请。
alleviate: v.在痛苦方面的减轻,缓和
• The painkiller alleviated the pain. 止疼药减缓了疼痛。
decrease: v.指数量上的减少;力量或者强度的减弱。
• The population decreased a lot last year. 去年人口数量急剧下降。
reduce: v.指人为地使某物在数量或重量方面的减少或降低。
• He reduced the amount of money they could spend. 他缩减了他们的开销。

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