Colibacterin
大肠菌苗
🗣️ 情景例句
I would like to buy some stamps, please.
我想买些邮票。
That's a bad idea if I've ever heard one!
你出这什么馊主意！
The doctor looked over Mrs Brown very carefully.
医生非常仔细地给布朗夫人作了检查。