The Arctic is an ocean covered with drifting packed ice and hemmed in by the land masses of Europe, Asia, and North America.

北极是一片海洋，为漂流的冰块所覆盖，四周被欧洲，亚洲和北美洲所包围。

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When running on snow, choose the fresh snow over ice or packed snow.

在雪地上奔跑时，选择刚落雪而不是冰上或是已被踩实的路面。

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Buyers inspect the freshly-landed ice-packed fish, and boat skippers look on anxiously as the auctioneer briskly sells some 4, 000 40-kilogram boxloads each day.

买家们精挑细选着刚捕来的还裹着冰的鱼。 鱼贩们兴致勃勃地卖着鱼，他们每天要卖的鱼共约4000箱左右，每箱都是满满的40千克，而船长们则在一旁看得心急如焚。

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Lately, the mercury has crawled up into the 40s, turning hard-packed ice into an endless brown sea of mud.

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Even at a distance, the brilliant blue of packed ice glimmers.

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There's nothing wrong with that when it's been packed in ice.

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