As these crystals flutter to the ground, much time is spent with their faces flat, parallel to the ground.

这些冰晶缓缓地飘向地面，大多数时候是面向地面并与地面平行的。

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You can build the enclosure on the ground and hoist it and the glass up separately if you have a flat roof.

如果你的屋顶是平的，可以先在地面把箱体装好，然后分别把箱体还有玻璃吊上屋顶。

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Solar halos are also caused by small, flat, six-sided, ice crystals that float down parallel to the ground.

太阳光环也是由微小、扁平、六面形的冰晶在同地面平行地飘落所引起的。

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About 17 firefighters tackled the blaze in the ground-floor flat of a two-storey building.

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We didn't clock our speeds, but the bike can supposedly top about 15 miles per hour on flat ground with the pedal-assist on, and that sounds about right to us.

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In the tiny bedroom they share in a ground floor flat, 13-year-old Lauren Fick is trying to finish her homework on her bed, as her two older brothers rub shoulders at the computer.

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