Calloy
铜镍硅合金
🗣️ 情景例句
It's about my grandfather.
是关于我爷爷。
I'm sorry. I don't get what you're driving at.
抱歉，我不明白你的意思。
I'm afraid I don't have it any more. I sold it last week.
我恐怕是没有了，上星期我把它卖掉了。