点睛之笔

the brush stroke that dots in the eyes (idiom); fig. to add the vital finishing touch / the crucial point that brings the subject to life / a few words to clinch the point

point / dot / drop / speck / o'clock / point (in space or time) / to draw a dot / to check on a list / to choose / to order (food in a restaurant) / to touch briefly / to hint / to light / to ignite / to pour a liquid drop by drop / (old) one fifth of a two-hour watch 更[geng1] / dot stroke in Chinese characters / classifier for items

to add the finishing touch (abbr. for 畫龍點睛|画龙点睛[hua4 long2 dian3 jing1])

eye / eyeball

eye; eyeball

(possessive particle, literary equivalent of 的[de5]) / him / her / it

pen / pencil / writing brush / to write or compose / the strokes of Chinese characters / classifier for sums of money, deals / CL:支[zhi1],枝[zhi1]