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, 討好所有人
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.
一個好的領導者不能面面俱到;他們必須做出艱難的決定。
•
In trying to be all things to all people, the new policy ended up satisfying no one.
新政策試圖面面俱到,結果卻誰也未能滿足。