Quadracycline
盐酸四环素
🗣️ 情景例句
Spring is the season for romance.
春天是浪漫的季节。
It's a hard job, but I hope he can make it.
这不是件容易的差事，但我希望他能做到。
As Earth-dwellers, we always cherish the hope that we will be visited by little green men and that we will be able to communicate with them.
小绿人来拜访我们，而我们可以和他们交流。