It's wrong and dangerous to leave children under a certain age alone in the house.

把一定年龄以下的孩子单独留在家里，是错误的、危险的。

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One site alone, the Pentland Firth, between Orkney and mainland Scotland, could produce 10% of the country's electricity with banks of turbines under the sea.

单是位于奥克尼和苏格兰大陆之间的彭特兰湾发电站，就可以利用海底涡轮机产生10%的全国发电量。

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Or packing up the tent and spending a night under the stars alone?

或者整理一下帐篷然后独自一人在夜空下过夜？

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Some of the kids he interviewed referenced hallucinations, suicidal thoughts and self-harm, all driven by the fact that they were so utterly and torturously alone under these conditions.

CNN: No kid should be in solitary confinement

And Morgan has her fourth New York Surf Film Festival under her belt, her first alone with rave reviews and sponsors and filmmakers eager to sign-up for next year.

FORBES: Wipeouts the Norm, the Surfing Industry Grows (Up)

Pope Benedict insisted on beginning his emotional visit by walking alone under the infamous sign and saying a prayer in front of the reconstruction of the execution wall where Nazis lined up and shot thousands of prisoners.

BBC: Auschwitz's sign of death and defiance