Bijective
[计] 双射的
🗣️ 情景例句
Oh, don't worry, Harry.
别担心， Harry。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
Unfortunately you'll have to pay the fine before you check those books out.
在你借书之前你要先付清罚款。