Monoid
[计] 独异点; 类群
🗣️ 情景例句
I don't mind what you do.
你干什么事我都不在乎。
David would get up early in the morning to deliver newspaper.
戴维一早起床就去送报纸。
Doesn't Karen Marsh look old!
卡伦看上去不显老嘛！