Polychlorosubtilin
多氯枯草菌素
🗣️ 情景例句
Are you having a good time, Susan?
玩得高兴吗， Susan？
At what time?
什么时间？
One moment we were walking along the top of a hill and now we could see no more than about thirty metres ahead of us.
一时间我们还在山顶上行走，而现在30公尺开外的地方我们都看不清了。