Polymetallism
多本位制
🗣️ 情景例句
Do you have any assurance for its quality?
你们有任何品质保证吗？
Oh. I don't know. Whenever.
噢，我不知道，无论什么时候离开。
A navy ship was in a port in Scotland for repairs.
一艘军舰停靠在苏格兰的一个码头等待维修。