Macrolide
n. [生化]大环内酯物
🗣️ 情景例句
Certainly.
当然。
I've had no time to prepare for this meeting, so I'll have to play it by ear.
我没有时间来准备这次会议，所以只好有什么说什么。
Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.
几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。