Monoid
[计] 独异点; 类群
🗣️ 情景例句
I think it's a good idea, Ellen.
我觉得这是个好主意， Ellen。
Truth needs no colour; beauty, no pencil.
真理不些要色彩，美丽不需涂饰。
He did not see the bag until it was too late.
等他看见袋子时已经太晚了。