A:Alison, would you like to have some more? 艾莉森,你要再吃一些吗?
B:No, thanks. I've had enough. 不,谢谢。我够了。
A:Actually you haven't had much. 事实上,你吃得不多。
B:To tell you the truth, I am on a diet. 老实告诉你,我正在节食。
A:That sounds ridiculous. Why? 这听起来很荒唐。为什么?
B:Well, I am gaining weight these days, and I have to watch my calories. 额,这些天我的体重增加了,我必须注意卡路里。