Alkide
烃基化物, 烷化物
🗣️ 情景例句
Do you know where the nearest post office is?
你知道最近的邮局在哪儿吗？
If I have enough money,I'm going to take a trip abroad.
如果我有足够的钱，我将在国外旅行。
The house moved and a few pictures fell off the wall, but that was all.
房屋也在动，几幅画从墙上掉下来，但只是这些。