Copel
[化] 科普尔铜镍合金(类似康铜)
🗣️ 情景例句
May I use a knife and fork please?
我可以用刀叉吗？
They who cannot do as they would,must do as they can.
不能如愿而行，也须尽力而为。
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？