int. [俚]是的（等于yes）
1. I will be at the party tonight, yup!
我今晚会参加派对，没错！
2. Are you ready to go? Yup, let's leave now.
你准备好出发了吗？没错，我们现在就走。
3. Did you finish your homework? Yup, I did!
你完成作业了吗？没错，我完成了！