J.
[医] 焦耳氏当量(热功当量)
🗣️ 情景例句
I am an atheist.
我是一个无神论者。
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
We can negotiate the unit price for large orders.
如果大量订购，单价可以再谈。