Pentachloroethane
五氯乙烷
🗣️ 情景例句
You're the only one
你是我们当中唯一
My favorite holiday is Christmas.
我喜欢的节日是圣诞节。
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。