Dichloromethylation
双氯甲基取代作用(引入两个氯甲基)
🗣️ 情景例句
Three. Besides Chinese, my mother tongue, I can also speak English and French.
三种，除了我的母语中文外，我还会讲英语和法语。
He who does not rise early never does a good day's work.
起身不早，一天的工作难做好。
for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep.
车轮与铁轨间单调的嘎喳声很快就会送你进入梦乡。