2--I am not supprised, you eat too much. 

1--And I suppose sitting at the desk all day at the office doesn't help.  

2--No, I wouldn't think so. 

1--I do wish I could lose weight. 

2--Perhaps you should excerise more. 

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注解：

1.weight体重
2.suppose推断
3.lose weight减肥

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译文：

1--噢，亲爱的，我的体重又上涨了。 
2--我并不觉得奇怪，你吃太多了。  
1--我觉得整天坐在办公室的办公桌前没有帮助。 
2--不，我不这样认为。 
1--我希望我可以减肥。
2--或许你应该做多点运动。