in a diet释义:
在节食
例句:
For the chronic dieter has a tendency to jump from one diet fad another, or skip certain stages in a diet plan.
迪特尔有着长期的趋势,从一跳饮食风潮另一个在饮食或跳过某些阶段计划。
on a diet释义:
遵守饮食特别规定的
例句:
She's always on a diet—she has issues about food.
她经常节食—她担心吃得太多。