Millions took the ice bucket challenge. But was it worth it?
London's Health Commission calls for prohibition of smoking in Trafalgar Square and the city's parks
How can you answer a question with a 'not' in it? Listen and find out
Learn an expression which means to see something obvious
视频The world's biggest guitar is on show in the US. Watch the video and learn new words
Is Feifei giving up her job to take care of babies? Learn an amusing idiom
Learn an expression to say you are going to have a good time
How can science fiction help the world? A project aims to inspire through stories of a bright future
With Ebola cases outside Africa rising, which countries are introducing airport checks?
Lunch at university: do students eat healthily?