Injective
[计] 内射, 单射
🗣️ 情景例句
Would you like to join me for lunch?
跟我一起吃午餐吗？
You get what you pay for.
便宜没好货。
I felt especially pleased with my wonderful bargain -- until I got back to the ship.
在回到船上之前，我一直为我的绝妙的讨价还价而洋洋得意。