Bijection
[计] 双射, 一一对应
🗣️ 情景例句
Since English is not your native tongue.
因为英语不是你的母语。
Have you offered him any candy?
你给他糖果吗？
He gets into the lift. It takes him down to the first floor.
他进入电梯。他乘电梯下到1楼。