Mossite
重铌钽矿
🗣️ 情景例句
I heard you cheated on your exams.
我听说你考试作弊了。
Did you go play ball last night?
你昨晚去玩球了吗？
I'd like to know something about your foreign trade policy.
我非常想了解有关贵国对外贸易的政策。