Sunglasses covered his eyes, and he wore a cheap black knit winter cap. Embroidered across the front of it was the word “Rock” in English.

我走到一个体格魁梧的家伙对面坐下，他戴着太阳镜，脸和脖子上围着传统的阿拉伯头巾，头上戴着一顶便宜的黑色的冬天戴的针织绒帽，帽子的前面绣有一个英文单词“Rock”。

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Layers of frozen sea water, known as sea ice, cap the Arctic Ocean. The ice grows dramatically each winter, and melts just as dramatically each summer.

北冰洋的冰层由结冰的海水构成，这些冰层在每年的冬天急速冻结，又在每年的夏天迅速消融。

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The Arctic ice cap fluctuates with the seasons, growing in the freezing winter and shrinking over the summer.

北极冰盖随季节而变化，在严寒的冬季增长而在夏季则会减少。

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The seasonal increase results from tons of carbon dioxide, which had been frozen into a southern winter ice cap, returning into the atmosphere as southern spring turns to summer.

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Vaughan made his first-class debut for Yorkshire in 1993 and six years later won his first Test cap during England's winter tour to South Africa.

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Wearing a black wool cap pulled down against the biting chill of a Chicago winter morning, Vallas bounds up to the doors of tenements on the city's gritty South Side.

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