We can't afford to slip up.

我们疏忽不得。

《牛津词典》

I tried to slip up the stairs unnoticed.

我试图神不知鬼不觉地溜上楼梯。

《柯林斯英汉双解大词典》

Saw this scene, I can't wait to come forward to slip up.

一看见这场景，我便迫不及待地上前滑了起来。

youdao

This is the place where people typically slip up in debugging. They don't think in advance what they expect the result to be.

实验就推翻了你的假设了,人们在做调试的时候往往忽略了这一点,他们做实验之前并没有想想。

麻省理工公开课 - 计算机科学及编程导论课程节选

Aston Villa go to West Ham waiting to pounce if Everton were to slip up.

BBC: Premier League prepares for D-Day

"Once we've turned that corner, we can move on from there and wait for other teams to slip up, which they will do, " he said.

BBC: Chelsea squad weaker than previous seasons - John Terry

Some officials admit to a slip-up over this year's budget target, which Mr Rajoy wanted to be 5.8% of GDP whereas Brussels insisted on 5.3%.

ECONOMIST: Spain and the euro