Halomethylation
卤甲基化作用
🗣️ 情景例句
why don't you introduce everybody to Susan?
何不将她们每一位介绍给 Susan？
What did you have for lunch?
你中午吃些什么？
There's something wrong with my left shoulder. I hurt it while I was doing gym. I've got a pain here too.
我的左肩疼痛。我做体操时受伤了。这里也疼。