開足馬力 kāi zú mǎ lì

DEFINITIONS

  1. to accelerate at full power (idiom); at full speed
  2. fig. to work as hard as possible

CHARACTERS

開 kāi open; initiate, begin, start
足 zú
HSK 2
foot; attain, satisfy, enough
馬 mǎ horse; surname; KangXi radical 187
力 lì
HSK 3
power, capability, influence