Decay of activity
[化] 活性衰减
🧩 词语组成解析
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];
🗣️ 情景例句
I'm in charge of the sales department.
我主管销售部。
Didn't I tell you he's same size to me?
我没有说过他和我一样大小吗？
Oh, sorry! Here's a full one.
对不起。这里有一瓶满的。