Specifity of catalyst
[化] 催化剂的选择性
🧩 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 should perform what you promised to do.
你应该履行诺言。
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
My friends kept on offering me cigarettes and cigars.
我的朋友们不断地向我递香烟和雪茄。