赤膊上阵 chì bó shàng zhèn

DEFINITIONS

  1. lit. to go into battle bare-breasted (idiom)
  2. fig. to go all out
  3. to come out in the open

CHARACTERS

赤 chì red; communist, 'red'; bare
膊 bó shoulders, upper arms
上 shàng top; superior, highest; go up, send up
阵 zhèn column, row or file of troops