high and low

US /haɪ ənd loʊ/
UK /haɪ ənd loʊ/
"high and low" picture
1.

到處, 高低

everywhere; in many different places

:
I've searched high and low for my lost keys.
到處找我丟失的鑰匙。
They looked high and low for the missing child.
他們到處尋找失蹤的孩子。