Phosphocalcite
轻斜磷铜矿
🗣️ 情景例句
Not so good, Grandpa.
情况不太好， 爷爷。
My brother is not quite twenty-five.
我的兄弟不够25岁。
The article began: 'Hundreds of steps lead to the high wall which surrounds the president's palace'.
“几百级台阶通向环绕总统的高墙。