驾 jia4 駕
轻 qing1 輕
就 jiu4 就
熟 shu2 熟
  1. lit. an easy drive on a familiar path (idiom); fig. experience makes progress easy
  2. a task that is so familiar one can do it with one's hand tied behind one's back

Examples

他回答这些所有的问题都驾轻就熟。

Info