駕輕車

Simplified: 驾轻车

jiàqīngchē ㄐㄧㄚˋ ㄑㄧㄥ ㄔㄜ

    • to take on a task that comes easily through skill or experience

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
drive a light cart
Meaning
To take on a task that comes easily because one is skilled or experienced. Short for 'drive a light cart on a familiar road'.

Sources