rú​yú​dé​shuǐ

like a fish back in water

Senses

如鱼得水/ 如魚得水 rú​yú​dé​shuǐ like a fish back in water

(idiom) in one's element; to be in a situation or with a person that is perfectly suited to one's interests, temperament, or development

References

variant 如鱼得水/如魚得水 犹鱼得水/猶魚得水
see 如鱼似水/如魚似水 如鱼得水/如魚得水
see 鱼水之欢/魚水之歡 如鱼得水/如魚得水