get your ass in gear
US /ɡɛt jʊər æs ɪn ɡɪr/
UK /ɡɛt jʊər æs ɪn ɡɪr/

1.
赶紧行动起来, 开始努力工作
to start working hard or acting quickly and effectively
:
•
You need to get your ass in gear if you want to finish this project on time.
如果你想按时完成这个项目,你需要赶紧行动起来。
•
The coach told the team to get their asses in gear or they would lose the game.
教练告诉球队要赶紧行动起来,否则他们会输掉比赛。