Dihydroxycoumarin
[医] 二羟基香豆素
🗣️ 情景例句
I made a lunch date with him and his daughter weeks ago.
几星期前我约好和他以及他女儿共进午餐。
I don't have the nerve to do it.
我没勇气去做。
The officer in the control tower was very angry when he heard the news,
控制塔上的官员得知这一消息后，非常气愤，