kāi​zú​mǎ​lì

to accelerate to full power

开足马力 開足馬力 kāi​zú​mǎ​lì
to accelerate to full power
to increase the speed of an engine or machine to its maximum limit
to go full steam ahead
(idiom) to work as hard as possible toward a goal; to put into high gear

Frequency

Movie subtitles
0.540 per million appears in 0% of films
Written text
0.567 per million

Sources