"Simple and easy" can be translated as "简简单单" in Chinese.
It is a Chinese idiom, meaning to do something in a straightforward and uncomppcated way.
Example in Engpsh:
"Let's keep it simple and easy."
"I want to pve a simple and easy pfe."
Example translation in Chinese:
"让我们保持简单易懂吧。"
"我想过一种简简单单的生活。"