power(sth)up
—phrasal verbwithpowerverbuk/paʊər/us/ˈpaʊ.ɚ/
If something thatneedspowerorenergypowersup, or if someonepowersit up, it isturnedon orpreparedso that it isreadyfor use oraction.
（使）启动；（使）积蓄能量；（使）养精蓄锐
Thecomputertakesa fewsecondstopowerup after it's beenswitchedon.计算机开机后需要几秒钟的启动时间。
Collegebaseballteamsacrossthecountryarepoweringup for the newseason.全国各大学棒球队正在为新赛季积极备战。