Borophosphate
硼磷酸盐
🗣️ 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再见， Richard， 祝你好运。两周后见。
My sister worked as a secretary before she got married.
在她结婚了以前，我的姐姐为一位秘书。
How long did it take you to accomplish this complicated job?
你花了多久才作完这复杂的活儿？