Piperacillin
[化] 哌拉西林; 氧哌嗪青霉素
🗣️ 情景例句
You'd better watch your step or you'll get into trouble again.
你最好留点儿神， 免得再惹麻烦。
I am sorry to keep you waiting.
真抱歉，让你久等了。
Tramps seem to be the only exception to this general rule.
在这条普遍的规律前面，