A: I can finish two large pizzas in 10 minutes all by myself.
A: 我可以一个人十分钟内吃下二个大pizzas。
B: No kidding?
B: 不是讲笑呀?
这里的"No kidding?"也可说成"Are you serious?"、"Really?"、"Are you kidding me?" 之类的话。
