Correct

如鱼得水

/ rú yú de shuǐ /
Strokes

Definition

like a fish back in water (idiom); glad to be back in one's proper surroundings

Example

Definition

like fish getting into water—be in one's element; (take to sth) like a duck to water

1
jiào
shū
lái
deshuǐ
如鱼得水
  

She has taken to teaching like a duck to water.