Dibromopropene
[化] 二溴丙烯
??? 情景例句
Are all the classes within walking distance?
所有的教室都在步行范圍之內(nèi)嗎？
What does you want to eat?
你要吃什么？
'The fire broke out in the basement.I went down immediately,of course,
“地下室突然著火，我當(dāng)然馬上下去了。