Polybromohydrocarbon
[化] 多溴烃; 多溴代烃
🗣️ 情景例句
It's just one of those things.
这样的事情总是难免的。
I haven't heard from him for a long time.
我很久没有收到他的信了。
The ones in this corner are cutting machines.
在这个角落的机器是切削机。