Earlier this year, British explorer Pen Hadow and his team trekked for three months across the frozen Arctic Ocean, taking measurements and recording observations about the ice.

今年年初，英国探险家佩恩·赫德尔和他的团队在冰冻的北冰洋上跋涉了三个月，对冰层进行了测量和记录。

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From an explorer, drag the force's name into the ICE Tree to create a Get Data node for it.

从浏览器里拖拽力场的名字到ICE树中就可以创立一个力场的数据节点。

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The explorer Pen Hadow and his team have had to delay the departure of their mission across the Arctic sea ice because of minor equipment problems.

由于设备出了些小问题，探险家潘·哈多（Pen Hadow ）和他的探险队不得不推迟北极考察任务的出发日期。

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When the explorer drills the ice to make a physical measurement of thickness, he will use the hole to lower a 4kg conductivity-temperature device (CTD) into the ocean below.

BBC: Arctic team targets key ice data

These days, thanks to global warming and a receding ice cover, the voyage is easier to complete, says explorer James Delgado, author of Across the Top of the World.

NPR: Warming Eases Northwest Passage, Author Says

The explorer, Marco Polo (1254-1324), is believed to have seen ice-creams being made during his trip to China and introduced them to Italy.

BBC: CBBC Newsround | ICE-CREAM | The origin of ice-cream