见缝插针 (jiàn fèng chā zhēn) | Meaning: lit. to see a gap and stick in a needle (idiom); fig. to make use of every second and every inch | Chinese Idiom with Pinyin & Origin

to act as circumstances dictate (idiom)相机行事xiàng jī xíng shì

lit. fight minutes, snatch seconds (idiom); a race against time · making every second count争分夺秒zhēng fēn duó miǎo

(work) in a meticulous way · fine needle and closely wrought threads · in fine, close stitches细针密缕xì zhēn mì lǚ

lit. to see a gap and stick in a needle (idiom); fig. to make use of every second and every inch