She dieted constantly in order to pre-serve her youthful figure .

为了保持年轻的身材,她不断地节食。

E.g. the doctor has dieted the patient strictly .

医生严格规定病人的饮食.

For I would not be dieted with praise .

我不接受称赞的素餐。

She has dieted off five pounds .

她用节食减轻了五磅。

Those who dieted without exercise regained almost all their old weight , while those who worked exercise into their daily routine maintained their new weight .

那些节食而不锻炼的人几乎全部反弹到原来的体重，而那些把锻炼身体列入日常项目的人则保持住了减肥后的体重。