Have/get cold feet｜become/be afraid or reluctant to do sth(especially sth risky or dangerous) 臨陣退縮或膽怯。
The hyenas think they overnumber the
lions, they act as they can defeat the
lions. but when the lion King come out,
they have cold feet.
鬣狗以為數量佔優，它們表現得像能打敗獅子似的，但是當獅王一現身，它們就臨陣退縮了。
They got cold feet at the last minute.
他們事到臨頭確退縮了。
When the female cat see the lizard want to
hurt it's baby, it doesn't have cold feet.
當母貓看見蜥蜴想要傷害它的貓寶寶，它沒有臨陣退縮。
Donald Trump got cold feet and announced
immediately that the rioters were not
incited by him after he was impeached.
唐納德川普被彈劾後臨陣退縮了，立馬宣布暴徒不是他煽動的。