駕輕就熟

驾轻就熟
jiàqīngjiùshú
  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

CEDICT

to perform a task with which one is very familiar with great ease; (to deem a task) a piece of cake; (to go for) a hay ride

Wiktionary

駕著輕車走熟路。比喻對事情很熟悉，做起來很容易。

重編國語辭典

比喻對事情很熟悉，做起來很輕鬆

維基詞典

Entry Composition

1 駕 jià
  1. to harness
  2. to draw (a cart etc)
  3. to drive
  4. to pilot
  5. to sail
  6. to ride
  7. your good self
  8. prefixed word denoting respect (polite 敬辭 jìngcí)
2 輕 qīng
  1. light
  2. easy
  3. gentle
  4. soft
  5. reckless
  6. unimportant
  7. frivolous
  8. small in number
  9. unstressed
  10. neutral
  11. to disparage
3 就 jiù
  1. (after a suppositional clause) in that case; then
  2. (after a clause of action) as soon as; immediately after
  3. (same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
  4. only; as little as
  5. as much as; as many as
  6. to approach; to move towards
  7. to undertake; to engage in
  8. (often followed by 著 zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: 就 jiù ... 也 yě ...) even if ... still ...
  12. (pattern: 不 bù ... 就 jiù ...) if not ... then must be ...
4 熟 shú
  1. ripe; mature
  2. thoroughly cooked; done
  3. familiar; acquainted
  4. experienced; skilled
  5. (of sleep etc) deep; profound
  6. also pr. shóu