Bijection
[计] 双射, 一一对应
🗣️ 情景例句
And the new drawings for the toy spaceship.
还有玩具太空船的新草图。
What is the sort of furture?
这是什么风格的家具？
To their surprise, the precious parcel was full of stones and sand!
令他们吃惊的是，那珍贵的包裹里面装的全是石头和沙子！