Preimage
逆象, 原象, [数]前象
🗣️ 情景例句
No, no. I just changed my seat.
不 不。我刚才换了一下座位。
She screamed in astonishment.
她惊吓得发出尖叫。
It is about two hundred metres from his home.
汽车站离他家二百米左右。