Scheelitine
钨铅矿
🗣️ 情景例句
Malcolm, this is Joanne Thompson. Malcolm
这是Joanne Thompson。
It's a matter of life and death.
事关生死。
Affluent he may be, but he is by no means sure what, to tip the doorman or the chambermaid.
他们可能很富有，但给看门人和房间女服务员多少小费，心中却根本没有数；