Hemigroup
[计] 半群
🗣️ 情景例句
It's too crowded in the bus. I think I'll have to get off to walk the rest of the way home.
车上太挤了，我想剩下的路我必需下车走路回家。
A bird is known by its note,and a man by his talk.
鸟以声闻，人以言知。
With some children, small sums go a long way.
对于有些孩子来说，少量的钱可以花很长一段时间。