Tcs
[化] 四环素类抗生素
🗣️ 情景例句
What you're saying is, in order for this center to succeed,
你刚才所说的意思是为了使中心能成功，
John stopped to study.
约翰停下来去学习。
They're in red and white.
他们穿着红白相间的衣服。