Science tells us that we sleep better in cooler temperatures of about 60 to 67 degrees Fahrenheit (15℃ to 20℃).

科学告诉我们，我们在60到67华氏度（15到20℃）的凉爽温度下睡得更好。

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In the US, 60 percent have donated to organizations, 39 percent once were volunteers at organizations and 65 percent are willing to help a stranger.

在美国，向机构捐赠的人占60%，在机构当过志愿者的人有39%，愿意帮助陌生人的人为65%。

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The survey states that almost 60% of the US population, not 60% of Internet Users but the entire population, are active on social networking sites.

调查指出，近60%的美国人（不是网民而是所有美国人的60%）是社交网站的活跃用户。

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Another big tax cut for upper-income people -- you have the highest of us -- highest income people, 60 percent of the tax cut.

WHITEHOUSE: The White House

Mr. MIKE MITTERNIGHT (Owner, Factory Service Agency Inc.): In days gone by, before there was such tight credit, most of the major manufacturers and suppliers would work with us and allow us a 45- to 60-day turnaround time to make those payments.

NPR: Business Owners Sound Off On Economy

So we -- 18 founders -- we gathered 60, 000 US dollars, and we start the business.

CNN: Jack Ma Talkasia Transcript