Unlike, for example, a class-cast exception, a null-pointer exception says nothing about what was expected instead of the null pointer.

例如，不像一个类转型异常，空指针异常不给出它所需要的内容的任何信息，只有一个空指针。

youdao

Unlike the dreaded null-pointer exception (which says nothing about what was expected to occur instead of the null pointer), a class-cast exception is relatively easy to debug.

与可怕的空指针异常(该异常除了报告空指针之外，对于将要发生的事情什么也不说)不同，类强制转换异常相对来说容易调试。

youdao

Sometimes we simply did what was expected of us without ever stopping to think about what we eventually wanted to accomplish for ourselves.

有时候，我们只是简单地去做那些自认为渴望的事，却没有停下来考虑自己真正想要的是什么。

youdao

But vagueness and confusion about what was expected of soldiers are not enough to establish the defense.

CNN: Carter: The 'I followed orders' defense

The best occasions were when the teacher had knew they were going to be away and had left lesson plans etc so it was clear what was expected and the supply received a clear briefing upon arrival about school practices and procedures and was then introduced to the class.

BBC: We invited your responses to a feature on supply teachers.

Adjusting operating loss in the quarter was 125 million, about 5x what the Street had expected, and about 3.5% of revenue.

FORBES: Alcatel-Lucent Posts Worrisome Q3 Results; Shares Plummet