Validacin
有效霉素
🗣️ 情景例句
Sam, would you come in, please?
Sam，请进来一下， 好吗？
I now know that wars do not end wars.
如今我才弄明白，干戈不能化玉帛。
I'm free on Thursday. I'd love to come.
我星期四有空。我很乐意来。