It's only human nature to be worried about change.

对变革有忧虑不过是人之常情。

《牛津词典》

How strong is the evidence that climate change is happening? That is really something we need to be worried about.

气候变化正在发生的证据有多有力？这确实是我们需要担心的事情。

youdao

How strong is the evidence that climate change is happening that it's really something we need to be worried about?

气候变化正在发生的证据要有多有力才能证明这真的是我们需要担心的事情？

youdao

Ayatollah Khamenei,argues Javedanfar, has reason to be worried: What concerns Khamenei, he says is that Mr.Obama has credibility.

VOA: standard.2009.03.21

I think the first thing that everybody involved in government has to be and who cares about the country has to be worried about is the security of this country.

我认为政府的工作人员,首要担心的是，以及,关心这个国家的任何人首要担心的,就是国家的安全。

普林斯顿公开课 - 国际座谈会课程节选

Everyone is, you know, kind of always working or worried about what they're going to be working on next.

每个人都在埋头工作，而且都在担忧接下来要干些什么。

气泡项目 - SpeakingMax英语口语达人

There is not really anything among the Bangladesh bowlers for England to be worried about.

BBC: Jonathan Agnew column

There is, however, a different reason to be worried about the loss of Mr Strauss-Kahn.

ECONOMIST: France��s subtle loss

Investors seem to be worried that the wrath of American officialdom will ruin BP.

ECONOMIST: American politics and business