It's such a pity if you start off on a bright tone on a story and suddenly realize you are talking about some people having been killed in a road crash.
如果你以欢快的嗓音开始播报新闻，但却突然意识到那是一篇致人死亡的交通事故的报道时，那就太遗憾了。
2
Because it's such a pity if you start off on a bright tone on a story and suddenly realize you are talking about some people having been killed in a road crash.
因为如果你一开始用欢快的语调讲一个故事，然后突然意识到你讲的是一些在车祸中丧生的人，这是很遗憾的。
3
Last week, one operated by the taxi company Uber struck and killed a woman pushing her bicycle across a wide road in Arizona.