Fluoprotactinate
氟镤酸盐
🗣️ 情景例句
Is Miss Zhang in?
张小姐在吗？
No,I don't .
不，我没有。
Meanwhile, they should encourage those among us who cannot swim five yards before they are gasping for air.
与此同时，他们对我们中的那些游不了5码就已喘不过气来的人应该是种鼓舞。