"Malaria is a deadly disease that affects millions of people, and amongst children in Africa it causes one in every five deaths," Professor Christophides said.

Christophides教授说：“疟疾是影响到数百万人的致命疾病，在非洲的儿童里，每五例死亡就有一个是它造成的。”

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College students admit to lying in about one in every three social interactions and people in the community about one in every five interactions.34.

大学生们承认每进行三次社会交流，他们就要说一次谎，而社会上的人每进行五次交流，就会说一次谎。

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More than 100,000 people are diagnosed with Type 2 diabetes every year in the UK - around 275 new cases every day or one every five minutes.

在英国，每年都有超过10万人被诊断为II型糖尿病。每天就有约275个新病例产生，也就是每五分钟就有一例。

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One in five people in Britain die from smoking, more than 115, 000 every year.

BBC: NEWS | Health | Thousands prepare to quit smoking

That amounts to one unit of government for every 6, 000 people five times the ratio in greater Los Angeles and seven times the ratio in New York city.

ECONOMIST: Urban planning