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
lit. speed is a crucial asset in war (idiom) / fig. swift and resolute (in doing sth)
只欠东风
zhǐ qiàn dōng fēng
all we need is an east wind (idiom) / lacking only one tiny crucial item
点睛之笔
diǎn jīng zhī bǐ
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
一柱擎天
yī zhù qíng tiān
lit. to support the sky as a single pillar (idiom) / fig. to take a crucial responsibility upon one's shoulders
lit. the story of the broken mirror of Princess Lechang 樂昌公主|乐昌公主[Le4chang1 Gong1zhu3] (In the tale, the princess and her husband, fearing separation during the turbulence of war, broke a bronze mirror in half. They each kept one half as a token, with the promise to reunite by matching the pieces together. They were indeed separated, but eventually reunited, with the mirror playing a crucial role in their reunion.) (idiom) / fig. the reunion of separated lovers or the restoration of a relationship