Whitlockite
白磷钙矿[石]
🗣️ 情景例句
Friends, teachers....
朋友 老师……
An evening red and a morning grey, is a sign of a fair day.
晚霞红如火，晓色青如灰，定是晴朗天。
I'm very sorry, comrade, said the man. I won't do it again.
“很对不起，同志，”楼上人说，“我不会再这么做了。”