Calloy
铜镍硅合金
🗣️ 情景例句
Pardon me.
劳驾。
I'm reading the newspaper downstairs.
我在楼下看报纸。
Can't we visit the High Dam? I've read a lot about it; it's the biggest in the world.
我们不能去参观高坝吗？我已读了很多关于高坝的情况；它是世界上最大的。