见缝插针

见缝插针	jiàn fèng chā zhēn	lit. to see a gap and stick in a needle (idiom); fig. to make use of every second and every inch
见	jiàn	to see / to meet / to appear (to be sth) / to interview / opinion / view
见	xiàn	to appear / also written 现
缝	féng	to sew / to stitch
缝	fèng	seam / crack / narrow slit / CL:道
插	chā	to insert / stick in / pierce / to take part in / to interfere / to interpose
插	chā	old variant of 插
针	zhēn	needle / pin / injection / stitch / CL:根,支
针	zhēn	variant of 针, needle