• n. 減少，減?。粶p少量
• vi. 減少，減小
• vt. 減少，減小

de-, 向下。-cre, 創造，增加，詞源同create, crescent.

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 décro?tre), 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.).

1. If the egg is not fertilised oestrogen and progesterone decrease.

如果卵細胞沒有受精，雌激素和黃體荷爾蒙就會下降。

來自柯林斯例句

2. The prices of polymers and suchlike materials will decrease.

聚合物及類似材料的價格會下降。

來自柯林斯例句

3. The demand for tea is on the decrease ( each year ).

茶葉的需求量 ( 逐年 ) 遞減.

來自《現代漢英綜合大詞典》

4. Last year there was a 20 % decrease in his earnings.

去年他的收入減少了20%.

來自《現代漢英綜合大詞典》

5. This shows a slight decrease on the numbers of the previous month.

這表明比前一個月的數目略有減少.

來自《現代英漢綜合大詞典》