Cofunctor
上函子, 反变函子
🗣️ 情景例句
May I look it over?
我可以过目一遍吗？
How are you doing these days?
这些日子你怎么样？
and often are foolish enough to let the adolescents see that they are annoyed.
而且愚蠢地让孩子看出自己的烦恼。