Eugensite
汞钯矿
🗣️ 情景例句
Mr. Carlson is busy at the moment. May I help you?
Carlson先生现在正忙着呢。我可以为你效劳吗？
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
On behalf of my company, I would like to welcome you here.
我代表我们公司欢迎你来这里。