Laueite
黄磷锰铁矿
🗣️ 情景例句
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
He wants to change his appointment from Monday to Wednesday.
他想要把他的约会从星期一改到星期三。
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。