鼓足的英文：
muster up

参考例句：

Sheila plucked up her courage to ask for a pay rise.
雪拉鼓足了勇气要求加薪。

"If you want to win a sprinting championship, you'll have to pull up your socks,"
若你想赢得短跑冠军就必须鼓足力气

muster是什么意思：
n. 集合；检阅；点名册
v. 召集，聚集；使振作；激发

The men mustered before their clan chiefs.
男人们聚集在族长们面前。

At the end of the war Henry was mustered out as an ensign.
亨利在战争结束退伍时是一个海军少尉。

At the end of the war Herry was mustered out as an ensign
亨利在战争结束退伍时，是个海军少尉。

He has come to muster the beaten generals and remnant soldiers.
他前来收拾这些残兵败将。

Go and muster all the men you can find.
去集合所有你能找到的人。