Marrite
硫砷银铅矿
🗣️ 情景例句
But you just put on your pajamas and robe,
你先把这睡衣裤穿上，
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。
These drawings on the wall are process sheets.
墙上的图表是工艺流程表。