The most important element is a cloud-free sky. And, statistically, 10pm to 11pm is the optimum viewing time.

最重要的元素是一片无云的天空，而且，据统计，晚上10到11点是最佳观赏时间。

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At a time of limited means of expression, snow was like free art supplies dropped from the sky.

在表达方式有限的时代，雪就像从天而降的自由艺术品。

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Snow was like free art supplies dropped from the sky.

雪就像是从天而降的免费艺术用品。

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The most important element is a cloud-free sky.

BBC: The perfect trip: Norway

Magness, a sly Texan in the Ross Perot mold, had started out with 700 customers in Memphis, Tex. in 1956, back when operators pulled TV signals free from the sky and pumped them into markets too puny for broadcasters or bureaucrats to bother with.

FORBES: Taking Liberty

The strong uptake isn't just because of Sky's recent broadband package, which was granted for free to anyone who already had Sky Digital TV and lives in an area already covered by broadband.

FORBES: BSkyB Jumps On More Subscribers