Heptamycin
庚霉素
🗣️ 情景例句
Not at all. It's my pleasure.
不客气。这是我的荣幸。
My little brother takes a bath before he goes to bed at night.
在他晚上睡觉以前，我的弟弟要洗一下澡。
What about when we leave?
我们离开实验室又该做些什么呢？