Pentabromide
五溴化物
🗣️ 情景例句
Nowadays many young people cohabit together without legal permission.
如今很多年轻人未获得法定允许就一起同居了。
Don't be shy!
别害羞嘛！
You must be more careful! That car nearly hit you.
你得多加小心！那辆小车差一点碰着你了。