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
You look bothered. Is there something I can help you with?
看你好像有点烦恼，有什么我可以帮忙吗？
I've never read a more fascinating story.
我没有读过比这更令人着迷的故事。
Some of the apples are hard to reach.
有些苹果很难够得着。