be able to handle a job with ease because one had previous experience; do a familiar work with ease; drive a light carriage on a familiar road; make easy progress through experience
驾轻车，走熟路，比喻对事情熟悉，做起来轻松便捷。［近］轻车熟路|得心应手。
连动式；作谓语、宾语、定语、状语；比喻对事物很熟悉
驾：赶马车。驾轻车，走熟路。比喻对某事有经验，很熟悉，做起来容易。
唐·韩愈《关石处士序》：“若驷马驾轻车，就熟路，而王良、造父为之先后也。”
到了场期日迫，只得把功令所有条件略为照顾，以求风檐寸晷，有驾轻就熟之乐。◎清·李绿园《歧路灯》第一○二回