Phosphogypsum
磷石膏
🗣️ 情景例句
We hired a woman to watch Richard and then Susan,
我们雇用一名女士来照顾Richard ，后来又照顾Susan
What channel are you watching now?
现在你在看哪个新闻？
He usually drops in at my place on his way home.
他常常在回家的路上顺便来看看我。