29%, the "invisible risk" group, scored high on three in particular: They spent five hours a day or more on electronic devices.

29%的“隐形风险”人群在三项测试中得分较高：他们每天花在电子设备上的时间超过5个小时。

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Because their behaviors are not usually seen as a red flag, these young people have been dubbed the "invisible risk" group by the study's authors.

因为这些年轻人的行为通常不被视为危险信号，因此该研究的作者们称他们为“隐形风险”群体。

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During the whole process, it has not only the tangible management risk and financial risk but also has the invisible risk from policy.

在项目全过程中，既有经营风险、金融风险等有形风险，也有政策变化等无形风险。

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Vince Cable believes that when interest rates are so low and growth so invisible it is worth taking the risk of borrowing a little more to spend on building houses and other infrastructure.

BBC: Economy: Stick to... no, change... the course