power-upBrE /ˈpaʊər ʌp/ 🔊NAmE /ˈpaʊər ʌp/ 🔊 noun [uncountable] the moment when a machine is switched on and starts working （机器的）启动；开机◆Does the computer beep on power-up? 电脑开机时发出 “哔” 的响声吗？🔊🔊 [countable] in computer games, an advantage that a character can get if a player wins a certain number of points, for example more strength 威力升级（玩电脑游戏者赢得一定点数时人物获得力量提升等）