Constantan
n. 康铜(铜镍合金)\\n[医] 康铜(镍铜合金)
🗣️ 情景例句
These knives are guaranteed never to go blunt.
这些刀保证不会变钝。
Shame they won't be there.
可惜他们将不在那儿。
I had at half past twelve.
我在12点半吃的。