摆战场

Traditional (Taiwan): 擺戰場

bǎizhànchǎng ㄅㄞˇ ㄓㄢˋ ㄔㄤˇ

    • to make all the preparations for a task

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
lay out a battlefield
Meaning
To make all the preparations for a task, as if for a battle.

Sources