擅自行动 shàn zì xíng dòng

DEFINITIONS

  1. act without authorization; to take action or make a decision without prior permission or orders

CHARACTERS

擅 shàn monopolize; claim; arbitrarily; to dare
自 zì self, private, personal; from
行 xíng go; walk; move, travel; circulate
动 dòng move, happen; movement, action