輕ㄑㄧㄥqīng車ㄐㄩjū熟ㄕㄨˊshú路ㄌㄨˋlù

  1. 駕駛輕便的車子行駛在熟悉的路徑上。語本唐·韓愈〈送石處士序〉：「若駟馬駕輕車就熟路，而王良、造父為之先後也。」比喻熟習某事。宋·辛棄疾〈賀新郎·逸氣軒眉宇〉詞：「逸氣軒眉宇，似王良，輕車熟路，驊騮欲舞。」也作「熟路輕車」。似得心應手、駕輕就熟、輕而易舉

英lit. to drive a lightweight chariot on a familiar road (idiom)​, fig. to do sth routinely and with ease, a walk in the park
德Routinenangelegenheit (S, Sprichw)​