如鱼得水[rú yú dé shuǐ]：like/fish/get/water；as fish getting to the water This idiom is used to signify finding a boon companion or an ideal situation. 东汉末年 dōng hàn mò nián：In the late Eastern Han Dynasty 诸葛亮zhū gě liàng ：a statesman and strategist, prime minister of the Kingdom of Shu in the period of the Three Kingdoms. 刘备 liú bèi ：the founder of Han kingdom in the Three Kingdoms. 关羽 guān yǔ ：a general allied to Liu Bei, deified as God of War. 张飞 zhāng fēi：a general of the Three Kingdoms. 军师 jūn shī：military counsellor； 指点 zhǐ diǎn：give advice (directions);show how to do sth. 形势 xíng shì：situation；condition 提高tí gāo：improve；raise；increase 亲密 qīn mì：close； intimate: 服气 fú qì：be convinced 例如：在这个工作环境中，他如鱼得水，非常享受工作。 zài zhè gè gōng zuò huán jìng zhōng,tā rú yú dé shuǐ,fēi cháng xiǎng shòu gōngzuò 。 在游泳池里，他如鱼得水，游得非常快乐。 zài yóu yǒng chí lǐ,tā rú yú dé shuǐ, yóu de fēi cháng kuàilè 。