Unfortunately these drugs are quite toxic and hinder the body's ability to fight off infection.

不幸的是，这些药毒性很大，妨碍身体抗感染的能力。

《柯林斯英汉双解大词典》

Unfortunately, the long-term costs of using simple quantitative metrics to assess researcher merit are likely to be quite great.

不幸的是，使用简单的量化指标来评估研究人员价值，其长期成本可能会相当大。

youdao

Unfortunately the long-term costs of using simple quantitative metrics to assess researcher merit are likely to be quite great.

不幸的是，使用简单的定量指标来评估研究人员的价值的长期成本可能是相当大的。

youdao

"Unfortunately though, most of the key international actors who have displayed quite a lot of interest in what is going on in south and central Somalia over the past couple of years, have really continued to neglect and ignore what is going on here in Somaliland."

VOA: standard.2009.09.07

Now that unfortunately happens quite regularly.

这样的不幸时有发生。

普林斯顿公开课 - 人性课程节选

Second thing we've got to worry about is, what's a basic step? All right, if I bury a whole lot of computation inside of something, I can say, wow, this program, you know, runs in one step. Unfortunately, that one step calls the Oracle at Delphi and gets an answer back. Maybe not quite what you want.

我们需要担心的第二件事情就是，什么该作为一个基本的步骤呢？,如果我把一大堆的计算过程放到里面，我可以说，噢，这个程序你知道的，一步就完成了，不幸的是,这一步可能要靠预言家才能得到答案,这可能跟你想要的结果不太相同吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

NASA's had problems, unfortunately quite a few problems, with the manned space program, but the unmanned program continues to go gangbusters.

NPR: Shuttle Landing Delayed Due to Poor Weather

So the situation is quite dramatic and unfortunately, it's not getting the kind of attention it needs here in the United States.

NPR: Africa Update: Somalia, Eritrea and Sudan

"This practice was unfortunately quite well known and familiar from the Soviet period, when money was exchanged at certain ratios or not returned, " Mr Medvedev said.

BBC: Russian anger at Cyprus bailout levy