There is no cause for concern.

没有理由担忧。

《牛津词典》

As far as we knew, there was no cause for concern.

就我们所知，没有什么要担心的。

《牛津词典》

As far as we know, there was no cause for concern.

据我们所知，没有什么要担心的。

youdao

Unfortunately, most funds continue to accept pension consultant assurances that there is no cause for concern.

FORBES: Pension Consultant Conflicts of Interests (April 1, 2002 )

Knox's family said last year the appeal was unwelcome, but no cause for concern.

CNN: SHARE THIS

Just three years ago the government insisted that Amedeo was doing well and there was no cause for concern.

CNN: Intelligence: Echoes in Brunei