Cofunctor
上函子, 反变函子
🗣️ 情景例句
Seven o'clock, I'll pick you up at your office.
晚7点，我去办公室接你。
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
Kate, I'm sorry about that argument.
凯特，那次争吵我很抱歉。