一蹴可几

一蹴可幾
  1. to succeed at the first try (idiom)
  2. easy as pie
  3. one can do it at once

CEDICT

  1. (Taiwanese Mandarin) to reach the goal in one step; do it all in one single day
  2. to reach the goal in one step; do it all in one single day

Wiktionary

一举可以到达比喻一下子成功

重編國語辭典

Entry Composition