I lived in New York for four years, so I know how to be safe at night.

我在纽约生活了四年，所以知道怎样在夜晚注意安全。

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But accidents can happen anywhere — even at your own house, and that's why you need to know how to be safe around water.

但是这种事情可能到处发生——甚至发生在自己的家里，因此你必须知道近水的安全问题。

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However, some experts are beginning to wonder how safe and anonymous this data is and how much end-user privacy could be compromised.

但是有些专家开始担心智能电网数据的安全和匿名性，以及终端用户隐私遭到侵犯的程度。

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"We need the same kind of thing to teach children how to be safe online, " he said.

BBC: A child's journey from Club Penguin to Facebook

Dr. FRED CERISE (Louisiana Health Department): We can tell you how to be safe with the water and boil it before you ingest it, used bottled water, but to the extent that people ingest the water anyway, they're going to be at risk.

NPR: New Orleans Residents Return to a Changed City

Until Arena can really lay out all its data, it is going to be difficult to know how safe the drug really is.

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