The car of the future should be far more pollution-free than present types.

未来的汽车应该比现在的汽车还要低污染。

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This weekend NPR ferreted out the story behind the ever-present and never functional "Free Public WiFi".

本周末，美国国家公共电台播报了永远存在且从未起作用的“免费公共 WiFi ”背后的故事。

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Don't worry - you're not alone - and this weekend NPR ferreted out the story behind the ever present and never functional "Free Public WiFi".

别担心，你不是一个人在战斗，这个周末NPR找到一个关于一直存在却从来没实现的“免费公共无线网络”的故事。

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The Canadian media are free to present a wide range of views and opinions.

BBC: Canada country profile

But children are free to present their own religious beliefs in areas such as artwork or in written homework.

BBC: Clinton sets limits on religion in schools

Both theatres offer the city's best comedy value after the last show most nights, when the comics present free improv performances.

BBC: Chicago's cutting-edge comedy