Preimage
逆象, 原象, [数]前象
🗣️ 情景例句
about your math teacher or your math homework.
你的数学老师或你的数学作业。
Eagles fly alone,but sheep flock together.
鹰爱独飞羊爱群。
Shortly after it was launched, the pie committee went to a local inn to celebrate.
盘子下水后不久，馅饼委员会成员们来到当地一家小酒店庆贺。