Dichloromethylation
双氯甲基取代作用(引入两个氯甲基)
🗣️ 情景例句
I didn't think of that. Thanks.
我倒没有想到这个法子。谢了。
Would you please hold the door open for me?
请您为我打开门？
The actual figure was made of copper supported by a metal framework which had been especially constructed by Eiffel.
这座雕像的主体是用铜制成的，由艾菲尔特制的金属框架支撑着。