Metallographer
n. 金相学家
🗣️ 情景例句
Marilyn Stewart, this is Harry Bennett.
Marilyn Stewart，这是Harry Bennett。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
I'm sorry, but we have a problem here.
对不起，我们有困难。