Bread and water

餐餐粗茶淡饭(Bread and water)，废话是人际关系的第一句。干最脏最累的活。

 a simple diet

... A rolling stone gathers no moss. 滚石不生, 转业不聚财 a simple diet 粗茶淡饭 a spent bullet 强弩之末 ...

 coarse tea and brown rice

There are many idioms about cooking, such as 家常便饭 (daily food preparation), 粗茶淡饭 (coarse tea and brown rice), 画饼充饥 (to draw cakes to allay hunger).

 einfache Kost

... 粗 ungehobelt; unfertig; derb, roh 粗茶淡饭 ein schlichtes Leben führen; einfache Kost 粗调 Grobeinstellung ...