Tcs
[化] 四环素类抗生素
🗣️ 情景例句
We should thank you.
我们应当感谢你。
Business before pleasure.
事业在先，享乐在后。
The rope had been cut, so it was obvious that the lamb had been stolen.
绳子被人割断，很明显小羔羊是被人偷走了。