Prevention of toxicants
[化] 防毒
🧩 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 like to study in the library because it's so quiet.
我喜欢在图书馆学习因为那儿很安静。
When you visit an American home.
在你访问一户美国人家时
Over there, near the back.
就在那边，靠后头的地方。