Injective
[计] 内射, 单射
🗣️ 情景例句
if you don't mind listening.
假如你不介意听的话。
I'm going to the bookstore. Will you go with me?
我要去书店，你和我去吗？
Collecting small items can easily become a mania.
收集小玩艺儿很容易着迷。