眼疾手快

话说在古代一个繁华的集市上，一位老中医正在摆摊义诊。突然，一阵狂风卷起地上的沙尘，一个不稳的药罐子就要掉落下来，眼看就要砸到一位老人的头上。这时，一个年轻的小伙子眼疾手快，一把抓住了药罐子，避免了一场意外。围观的人们都称赞他的反应速度快，动作敏捷。

huà shuō zài gǔdài yīgè fán huá de jíshì shàng, yī wèi lǎo zhōngyī zhèngzài bǎi tān yì zhěn. tūrán, yī zhèn kuángfēng juǎnqǐ dì shàng de shāchén, yīgè bù wěn de yàoguànzi jiù yào diàoluò xiàlái, yǎnkàn jiù yào zá dào yī wèi lǎorén de tóushang. zhè shí, yīgè niánqīng de xiǎohuǒzi yǎnjí shǒukuài, yī bǎ zhuā zhù le yàoguànzi, bìmiǎn le yī chǎng yìwài. wéiguān de rénmen dōu chēngzàn tā de fǎnyìng sùdù kuài, dòngzuò mǐnjié.

In an ancient bustling marketplace, an old doctor was setting up a stall for free medical consultations. Suddenly, a gust of wind stirred up the dust on the ground, and a precarious medicine jar was about to fall, seemingly about to hit an old man's head. At this moment, a young man, with quick eyes and hands, caught the jar, averting a possible accident. The onlookers praised his swift reaction and agile movements.

常用来形容人反应迅速，动作敏捷。

cháng yòng lái xíngróng rén fǎnyìng xùnsù, dòngzuò mǐnjié

Often used to describe someone's quick reaction and agile movements.