Matroid
矩阵胚, 拟阵
🗣️ 情景例句
and now for something new.
现在轮到新的东西了。
It is better to please a fool than to anger him.
惹得傻瓜发火，不如使他快活。
Why don't you come a little earlier? About a quarter to.OK?
45分左右来，好吗？