Monendomorphism
单一自同态
🗣️ 情景例句
It makes a tremendous difference to me.
这对我来说差别极大。
I gave her my address and she gave me hers.
我把我的地址给她，她也把她的给了我。[九六广州初中会考]
Bob tries another pop star. This time he has more difficulty in getting through.
鲍勃试着想请另一个流行歌星。但这次电话比较难打通。