With one-third of Britons classified as overweight, the nation spends ?11billion a year trying to get thin.

　　由于三分之一的英国人体重超标，英国每年花在减肥上的费用高达110亿英镑。

　　It shouldn't be so hard, since all you need to do to lose weight is to consume fewer calories than your body burns up, yet it is something that many of us find fiendishly difficult.

　　其实减肥并不难，你所需要做的就是摄入的卡路里比消耗的卡路里少，但在大多数人眼里，这一点却很难做到。