Each eye vision in the separate above 15, two eyes of common view in 200 degrees above, and people's vision only 100 degrees or so.

每只眼睛的单独视野在15度以上，两只眼睛的共同视野在200度以上，而人的视野仅有100度左右。

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But only 15% of our undergraduates now receive their degrees in natural science or engineering.

可我们现在理工科本科生拿到学位的只有15%。

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Even 15 billion years or so after the Big Bang, echoes of that event still linger in the form of background radiation, only a few degrees above absolute zero.

即使宇宙大爆炸发生在约150亿年前，它的回波仍然以背景辐射的形式残留着，仅比绝对零值高一点点。

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Open all year round, the Treehotel might attract only the hardiest of souls during the winter as temperatures typically dip to around minus 15 degrees Celsius (5 degrees Fahrenheit).

CNN: Modern design meets nature with Sweden's Treehotel