模仿文本： Exactly 50 years ago today, the BBC broadcast the first episode of a new TV drama. Doctor Who featured a grumpy middle-aged time traveller and evil extraterrestrials called Daleks. Soon Britain was hooked and half a century on Doctor Who remains a worldwide hit. To mark the anniversary, a special episode adds tonight in 90 countries around the world in 15 different languages.  

 

译文：  50年前的今天，BBC播放了一部新电视剧的第一集。《神秘博士》塑造了一个名叫Daleks的性情乖戾的中年时间旅行者、邪恶的天外来客。之后这部剧风靡全英国，直到50年后的现在仍是全球知名的电视剧。为了纪念，今天在全球90个国家，以15种不同的语言播出了特殊的一集。