He could tell at a glance what was wrong.

他一眼就看出了问题所在。

《牛津词典》

When the clock stopped he took it apart, found what was wrong, and put the whole thing together again.

钟停了之后他把它拆开，找出了问题，然后又全部装好了。

《柯林斯英汉双解大词典》

When the clock stopped, he took it apart, found what was wrong, and put the whole thing together again.

当钟不走时，他把它拆了，找出毛病所在，然后再组装起来。

《柯林斯英汉双解大词典》

Lewis Cass saw nothing wrong with slavery if that was what the people wanted.

VOA: special.2009.03.12

That didn't work. Well they couldn't figure out what was wrong. And they spent a long time trying to debug the program.

调试这个程序,那时候当然不叫调试了,然后他们发现了问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

You might be able to tell just by looking at it what was - if there was a disease what was wrong with it.

也许还能看出,这个细胞是否存在病变

耶鲁公开课 - 生物医学工程探索课程节选

He'd started having problems in his late teens, but no-one knew what was wrong.

BBC: NEWS | Health | NHS stories: Life after transplants

She said she couldn't deal with it anymore but would not say what was wrong.

NPR: Lawyer: Assaulted Teen Had Drawings, Name On Body

Instead, he says, their attention focuses on what was wrong with the individual shooter.

BBC: Why America's gun laws won't change