we all need ______ in our diet, which is good for our health

1.the quality of not being the same or not doing the same thing all the time 變化；多樣化；多變性 uncountable

We all need variety in our diet. 我們都需要飲食多樣化。

We want more variety in our work. 我們希望我們的工作多變點兒花樣。

2.variation 變化,變異,變體的意思