Dehydrorotenone
[化] 脱氢鱼藤酮
🗣️ 情景例句
I have been a poor student of foreign languages.
外语就学得不好。
He has a writig brush.
他有一支毛笔。
sank with all flags flying----in the harbour of the birth.
带着全身飘扬的彩旗，沉没在了它诞生的港口。