Cuproscheelite
铜白钨矿
🗣️ 情景例句
Could I trouble you with something for a moment please?
请问可以麻烦你一下吗？
Lend your money and lose your friend.
赔了夫人又折兵。
Excuse me! Is this your bike?
打扰一下。这是你的自行车吗？