Dihydroxycoumarin
[医] 二羟基香豆素
🗣️ 情景例句
How old are you, Gerald?
Gerald，你今年多大啦！
Martha will expect you to come by at six o'clock for dinner.
玛莎以为你在六点以前会来吃晚饭。
We're planning a tour to Italy this summer.
我们计划今年夏天到意大利去旅行。