You need a sun block to protect your skin.

你需要一瓶防晒霜来保护皮肤。

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You would need a jeweller's loupe the size of the Sun to grade this diamond.

要评价这颗钻石的等级，需要使用像太阳那么大的珠宝商专用放大镜。

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Sandia's cells, on the other hand, would only need to be moved a fraction of a millimeter to track the sun efficiently while weighing next to nothing.

而桑迪亚的电池则只需移动零点几毫米就能有效地跟踪太阳，且其重量微乎其微。

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To be Earthlike, you also need a sun like ours and Kepler-22b has that.

BBC: Viewpoint: The obsession with a 'twin Earth'

When you need a break from the sun, hop on a tour of the neighbourhood, taking in the largest collection of Streamline Moderne Art Deco architecture in the world.

BBC: Daily deal: Mid-century mod in Miami

Earth's magnetic field gives the planet and its inhabitants a good measure of protection, but with space agencies seemingly intent on sending astronauts to the Moon and even to Mars in the next few decades, there is a pressing need for a fuller understanding of the Sun's activity.

BBC: NEWS | Science/Nature | Spacecraft go to film Sun in 3D