Preimage
逆象, 原象, [数]前象
🗣️ 情景例句
We're going to play charades.
我们来玩哑谜。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
When a servant opened the door to fetch some wood, I spoke to her and persuaded her to let me in.
一个仆人开门取柴火时，我和她说话，并说服她让我进去。