Preimage
逆象, 原象, [数]前象
🗣️ 情景例句
Grandpa, get the net, please!
爷爷 ，请把网子拿来！
No garden without its weeds.
有利必有弊。
being brought up in an orphanages--which really is a mental health hazard.
比在孤儿院长大所受的危害要小一些，孤儿院才是真正危害精神健康的地方。