Acetylenebromide
[机] 乙炔基溴
🗣️ 情景例句
World-class athletes are extremely fit.
具有国际水平的运动员体格非常好。
Neither father nor mother likes this weather.
爸爸妈妈都不喜欢这天气。[咬五次舌头]
Twenty people had already left.
有20个人已经离去。