Colibacterin
大肠菌苗
🗣️ 情景例句
We enjoyed our trip to Europe.
这次到欧洲旅行，我们非常愉快。
Why are you so excited?
你干嘛那么激动？
Burglar alarms going off at any time of the day or night serve only to annoy passers-by and actually assist burglars to burgle.
防盗警报器在白天和黑夜的任何时候都会响起来，它的作用只是骚扰过路行人，而实际上却帮助窃贼入室行窃。