Collieite
钙钒磷铅矿
🗣️ 情景例句
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
I still have a cough.
我仍然患咳嗽。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。