Those children were offered free activity and puzzle books.

这些孩子们则自由活动和读益智书籍。

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Science, on Weber's account, is an essentially value-free activity.

按照韦伯的说法，科学在本质上是一种价值无涉的活动。

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Usually there's free activity on the surface of metal because of electronic.

通常金属的表面由于电子可以自由的活动。

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Lifting all restrictions on free business activity, she left Britons without social security.

BBC: Margaret Thatcher dies: World media reaction

These complementary digital detox areas allow guests to sip beverages, play board games and read, and visitors can even choose to do a tech-free, stress-free outdoor activity, such as paddle-boarding.

BBC: Take a holiday from technology

Their so-called "core" areas are relatively free of human activity.

UNESCO: 83e