Chalcolite
铜铀云母
🗣️ 情景例句
we'll send you a letter of appointment and can sign a full distributor contract.
我们将给你们送上一份聘书，并签订一份总的销售合同。
There is no going heaven in a sedan.
坐轿上天堂，从来无此事。
That's a terrific idea!
真是好主意！