fall between two stools

US /fɔl bɪˈtwin tu stulz/
UK /fɔl bɪˈtwin tu stulz/
"fall between two stools" picture
1.

兩頭落空, 兩邊不討好

fail to be part of either of two categories, plans, or courses of action, but instead be in an awkward intermediate position

:
The new policy tried to please everyone but ended up falling between two stools, satisfying no one.
新政策試圖取悅所有人,但最終兩頭落空,誰也沒能滿意。
If you try to specialize in too many areas, you might fall between two stools and not excel in any.
如果你試圖在太多領域專業化,你可能會兩頭落空,在任何一個領域都無法出類拔萃。