1·Pack ice around Iceland was becoming a threat to navigation.
冰岛周围的浮冰一度成为船舶航行的威胁。
—— 《柯林斯英汉双解大词典》
2·Navigation dangerous on area around the North Pole due to pack ice.
由于多积冰，在北极附近水域航行是危险的。
3·Polar bears living in a large southern edge of the Arctic pack ice zone.
北极熊生活在有大片浮冰的北极南部边缘地带。
4·Icebergs are created when chunks of pack ice break free and float off into open sea.
当大块积冰断裂、漂浮至远海的时候，冰山就形成了。
5·They spent weeks tracking and recording the hunting behaviour in the pack ice off the coast of the Antarctica Peninsula.
他们花了几个星期的时间在南极洲的半岛的冰盖上跟踪和记录虎鲸的狩猎的行为。
6·Perovich was chief scientist on Ice Station SHEBA, a yearlong drift of an icebreaker frozen into the Arctic pack ice.
裴洛维奇也是席巴海冰研究站的首席科学家，他搭乘的破冰船与北极浮冰冻结在一块儿，一起漂流了一年。
7·More tantalising bear prints were spotted, crimping the edge of pack ice, making their big-footed way across a small floe.
我们看到了更多引人入胜的熊爪印，它们的大脚掌在浮冰上行进。
8·Animals adapt to changing conditions , which might mean a shift in population patterns to areas where pack ice is morerobust year - round.
动物会适应变化的条件，这意味着它们的数量会转移到更加结实的冰盖上去。
9·When the Belgica became stuck in pack ice, her crew achieved the unintended distinction of being the first humans to overwinter in the Antarctic.
贝尔基卡号被困于浮冰之时，他的船员们意想不到的成为第一批在南极过冬的人。
10·Almost nothing grows on their land; their animals graze on desert bushes; the people mine ingots of salt from what looks like shimmering pack ice.
他们的土地几乎寸草不生；他们在沙漠荒野里放牧牲口；人们从看上去像闪光的浮冰的物质中提炼盐块。