Velacycline
吡甲四环素, 四氢吡咯甲基四环素
🗣️ 情景例句
I love it when people come over to visit.
我喜欢别人来造访。
I hesitate to ask you, but will you lend me some money?
也许我不该问你，你能借我一些钱吗？
Two heads are better than one.
人多智广。