Decay of activity

[化] 活性衰减

🧩 词语组成解析

decay [dɪ'ke]

vt.& vi. （使）腐烂，腐朽; vi. 衰败，衰退，衰落; n. 腐败、衰退的状态;

de向下+cay落下→向下掉→衰退;腐败

of [əv]

prep. 关于;属于…的;由…制成; aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];

activity [æk'tɪviti]

n. 活动;活跃，敏捷;活动力;教育活动;

act行动，做+ivity状态→活动

🗣️ 情景例句

I'm dieting to keep my figure.

我正在节食以保证身材。

We are delighted with your products and are thinking of placing an order. The size of our order will depend greatly on your price.

我们对你方的产品非常满意，正欲订购。我们定单的大小主要取决于你方的价格。

Please do. We 're desperate for the material.

麻烦你了，我们非常需要这些材料。

更多情景英语 ›

🔤 更多 D 开头的单词

day-time ['deitaim]

deftly ['deftli]

delved

derogately

dichlorocarbene

diprotodon

dispute settlement

dorsicommissure

全部 D 开头单词 ›