slip up的意思？

slip up的音标：slip up的英式发音音标为：[slip ʌp]slip up的美式发音音标为：[slɪp ʌp]...

There's been a slip-up somewhere.有个地方出了点小错。I tried to slip up the stairs unnoticed.我试图趁没人注意溜上楼去。Due to a slip - up at the power plant, there was a five hour blackout.发电厂的疏忽导致停电五小时....