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Filtering sea water and bike scheme in China 过滤海水、中国自行车租赁计划 本集内容 New material could make sea water drinkable 新材料可过滤并净化海水 China’s bike hire schemes create fight for street space 中国自行车租赁计划引发街道空间之争 文字稿 Here in Manchester, graphene has been used to create a filter. The aim is to convert sea water into a form that’s drinkable. Drinking water will be scarce for 1.2 billion people by 2025. 在英国城市曼彻斯特，人们已开始利用石墨烯来制造一种滤水纸。这样做的目的是把海水转化成可供人饮用的状态。到 2025年，全球将有12亿人缺少饮用水。 The rapid success of China’s bike hire companies took everyone by surprise. As you can see, there are spaces in Beijing which are now totally crammed with bikes. The beauty of these is you scan them with your phone and then leave them wherever you like for the next person. Some of those complaining about the bikes want to park cars on the footpath. 在中国，自行车租赁公司的迅速成功让所有人大吃一惊。你可以看到，北京的一些街道上完全停满了自行车。这些供租赁的自行车的妙处在于，只要用手机扫一扫，人们就可以骑走自行车，使用完后则可把车放在任何一个地方，以供下个人使用。一些抱怨自行车占据了城市的空间人其实是想把机动车也停在人行道上。 | 
