a simple diet

• n. 粗茶淡饭

a simple diet的用法和样例：

例句

用作名词 (n.)

1. He subjected himself to a poor diet.
   他饱受粗茶淡饭之苦。
2. All we can offer you is simple fare.
   就请你粗茶淡饭凑合一顿。