be all things to all people
US /bi ɔl θɪŋz tu ɔl ˈpiːpl/
UK /bi ɔl θɪŋz tu ɔl ˈpiːpl/

1.
面面俱到, 讨好所有人
to try to please everyone, often resulting in not pleasing anyone well
:
•
A good leader cannot be all things to all people; they must make tough decisions.
一个好的领导者不能面面俱到;他们必须做出艰难的决定。
•
In trying to be all things to all people, the new policy ended up satisfying no one.
新政策试图面面俱到,结果却谁也未能满足。