Dehydrorotenone
[化] 脱氢鱼藤酮
🗣️ 情景例句
Bye.
再见。
I would like to call an eletrician to come this afternoon.
我要叫一个电器师傅今天下午来。
A young English writer made the pertinent observation a year or two back
一两年前，一位年轻的英国作家发表了中肯的看法。