lean mix

例句：

1. 1. The lean man was struggling to keep up with the heavy load.
   那个瘦弱的人正努力跟上沉重的负担。
2. 2. The food on the table is not very lean.
   桌上的食物并不很瘦。
3. 3. She decided to eat less and stay leaner.
   她决定少吃点，保持更苗条。