The only serious difficulty in this work is that it's sometimes dangerous to drive at night.

这项工作中的唯一难题是有时在夜里开车很危险。

youdao

Were it not for their assistance, we would be in serious difficulty.

要是没有他们的帮助，我们会陷入困境。

youdao

We are all under the illusion that the country is doing well economically, but in fact it is in serious difficulty.

我们都误以为这个国家经济状况良好，但是实际上它正处于严重的困难之中。

youdao

If we can't get this done for 2010, we will be in serious difficulty.

BBC: Mosley wants action to 'save' F1

" Beijing University economist Xiao Zhuoji believes: "If the renminbi remains stable then China's trade will be in serious difficulty next year.

CNN: THE LONG, HARD CLIMB BACK UP

At the overwhelming majority of colleges and universities throughout the country, merely voicing an unpopular opinion (or being critical of the campus administration) can easily cause a student, or even a faculty member, serious difficulty with the campus disciplinary tribunals.

FORBES: Campus Censorship Breeds Societal Dysfunction