像鸭子入水般容易,轻而易举,毫不困难,毫无畏惧(习惯于某事)
(take to sth) like a duck to water
(to become used to sth) very easily, without any problems or fears
She has taken to teaching like a duck to water.她教起书来驾轻就熟。
释义来自《牛津高阶英汉双解词典》第 9 版