I'm supposed to be on a diet.

我应该节食的。

Oh, no, thanks. I'm on a diet.

不用，谢谢。我在减肥呢。

No, thanks. I'm supposed to be on a diet.

不，谢谢啦。我应该节食。

Overall, more women reported being on a diet than men.

总的来说，报告节食的女性多于男性。

I need to avoid those moreish sweets! I'm on a diet.

我要避免吃这些让人上瘾的甜食！我在节食。

I don't want any fried chicken. I'm on a diet.

我不想吃炸鸡。我正在节食。

This is my normal figure – and I have not been on a diet.

这是我的正常身材，而且我没有节食。

Like being on a diet of whole grains, salad with meat or beans.

就像我们的全麦、有肉类和豆类的沙拉。

I am on a diet. Do you have a vegetarian menu?

我在节食。你们有没有素食菜单?

Yes, I am on a diet. So would you please give me a light soup?

是的，我正在减肥。可否给我上一碗清谈点的汤？