It's not unusual for the police to close ranks when one of their officers is being investigated.

在一位警员受到调查时，警察抱团的事并不罕见。

《牛津词典》

It's not unusual to feel lost when you first start college.

刚上大学时感到很迷惘不足为奇。

youdao

It's not unusual to be sitting in a restaurant and to look across at the next table and see film stars and directors with their friends.

在餐馆里偶遇邻桌是电影明星和导演以及他们的朋友们，这并不罕见。

youdao

She says it remains fresh and unusual because the event does not try to tell society's views about the performing arts.

VOA: special.2009.08.05

Now, the reason we're going to wait until next week is the first concept sheet is unusual in that it's not just you writing about whatever you want, but it's writing about your dietary analysis.

好了,要等到下周再发的原因是,第一篇论文有个特别之处,你不仅要把想法写下来,还要写你的饮食分析

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Iranian and U.S.diplomats were aware of one another's presence at the Moscow conference, but said it is not unusual for them to attend the same international forums.

VOA: standard.2009.03.27

It's not unusual for an outbreak to kill an entire colony of wild prairie dogs.

NPR: Prairie Dogs Yield Bioterrorism Insight

It's not unusual to see Democratic presidential candidate Barack Obama using his cell phone or BlackBerry.

NPR: Obama's Technology Outlook

It's not unusual for a big piece of legislation to elicit strong oppositions at first.

CNN: Health care will be an Obama legacy