Alkylide
烃基化物
🗣️ 情景例句
May I speak to Miss Chen?
可以跟陈小姐讲话吗？
I got home, feeling very tired.
我到家时都累死了[分词作状语]
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工业部门工作和在军队中服役的许多人对噪音有切身的体会，他们认为对这个问题进行调查是浪费时间，