画龙点睛 (huà lóng diǎn jīng)

Character breakdown

• 画 (huà) · 8 strokes

  Pictograph of a hand holding a writing utensil (聿) and drawing something. The 聿 component was deleted for simplification.

• 龙 (Lóng) · 5 strokes

  Pictograph of a dragon curled up. The simplified character 龙 was adapted from the cursive form of the traditional character 龍.

• 点 (diǎn) · 9 strokes

  Simplified form of 點. Phonosemantic compound. 黑 represents the meaning and 占 represents the sound.

• 睛 (jīng) · 13 strokes

  Phonosemantic compound. 目 represents the meaning and 青 represents the sound.

Usage

最后这句话起到了画龙点睛的作用。

to paint a dragon and dot 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

zuì hòu zhè jù huà qǐ dào le huà lóng diǎn jīng de zuò yòng 。