We went through two caves, an extremely unusual part of the journey.

我们通过两个山洞，一极其不寻常的部分旅行。

youdao

The first filesystem backend I'm targeting is an extremely unusual one: it's a CIFS backend.

我针对的第一个文件系统后端是一种极不平凡的文件系统：它是一种CIFS后端。

youdao

You might describe an extremely unusual situation, reveal a shocking statistic, or vividly portray an alarming problem.

你可能会描绘一个异乎寻常的场面，透露一个触目惊心的数据，或者栩栩如生描述一个耸人听闻的问题。

youdao

This is fairly unusual for plants, he says, and extremely unusual for animals.

VOA: special.2010.02.02

So he took an extremely unusual step for an American president.

VOA: special.2009.08.20

"It was not a single failure but an extremely unusual and complex multisystem emergency, " Rear Adm.

CNN: F-18 crash attributed to rare dual engine failure

But it is extremely unusual to wheel it out, as Baron Cohen has done, as a conversation opener.

BBC: Am I Sacha Baron Cohen's next target?

"It is extremely unusual for people in these ages groups to develop HUS, " the Health Protection Agency says.

BBC: Q&A: E. coli outbreak