Five Do not: Do not tell them all this is just their imagination.

五不要：不要告诉他们这一切都只是他们想象出来的。

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Some in the industry apparently do not want to pay for CFC substitutes, which can run five times the cost of CFC's.

一些业内人士显然不想购买氟氯化碳替代品，因为后者的价格是氟氯化碳的5倍。

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Hannah started to think about how she could help, but, of course, there is not a lot one five-year-old can do to solve the problem of homelessness.

汉娜开始思考她该如何能帮上忙，但显然一个五岁的孩子在解决无家可归的问题上能做的事情并不多。

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Any of you who have access to a four- or five-year-old, a sibling or something-- Do not take one without permission, but if you have access to a four- or five-year-old you can do this yourself.

如果你身边有四五岁大的孩子,兄弟姐妹什么的,一定要先得到同意再去试验,如果你身边有四五岁大的孩子,你可以自己去试试

耶鲁公开课 - 心理学导论课程节选

"For example, one in five do not have fresh fruit and vegetables and one in seven do not have three meals a day, " she said.

BBC: NEWS | UK | Northern Ireland | Children face 'severe poverty'

At present, about one in five pupils do not reach the expected level for English at the age of 11.

BBC: NEWS | UK | Education | Struggling pupils get extra help

Large numbers of shoppers could face disappointment, particularly if recent research from card provider Visa that one in five people do not know their PIN proves accurate.

BBC: NEWS | Business | Stores face card fraud deadline