pump someone up
phrasal verb with pump verb uk/pʌmp/ us/pʌmp/
informal
为打气,使鼓起勇气
to make someone feel more confident or excited
He was offering them advice and trying to pump them up. 他给他们提建议,努力给他们打气。
The players were pumping themselves up by singing the national anthem before the game. 比赛前,运动员们唱起了国歌,给他们自己打气。