Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
Well, there's a lot to think about.
噢 有许多事需要考虑。
Will you please lock the door when you leave?
请您当你离开时，锁门？
It was still early when I returned home.
我回到家时，时间还早。