少不更事的年岁，耳边常有人说，弄出个孩子来太容易了，容易得我甚至必须要保持警惕——不要一不小心当了爸爸。

When I was a teenager, everyone said becoming a parent was easy - so easy, I had to be careful not to do it accidentally.

youdao

这个小玩意很不错，一不小心就会上瘾。使用了几周之后，我开始用它的读数来为自己的坏脾气辩护。

It's a neat, addictive little gadget, and after weeks of testing, I've started to use its readings to justify any and all crankiness.

youdao

年轻人长长一不小心就让自己身处险境- - -这就是莽撞吧，我想。

"With young people, there's often that carelessness, allowing yourself to get into danger - recklessness, I suppose."

youdao

In problem set 5, last year I took a stroll around campus with one of the teaching fellows with his digital camera, we shot photographs of identifiable but non-obvious spots on campus and then like an idiot I always seem to erase my compact flashcard accidentally.

在习题集5中,去年我和另一位老师一起带着数码相机在校园里闲逛，我们在校园里没有目的地乱拍,像一个傻瓜一样,我一不小心清空了,我的便携闪存卡。

哈佛公开课 - 计算机科学课程节选