Stannekite
煤中树脂状烃
🗣️ 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。
Have you seen Mr. Smith recently?
最近你见过史密斯先生吗？
I'd be happy to.
很乐意。