In fact, only 18, 000 years ago (a blink of an eye in geologic time), twice this amount of ice covered the northwest of North America.

事实上在18000年前，两倍于现在的南极的冰覆盖了北美的西北部。

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On the morning of the stroke, I woke up to a pounding pain behind my left eye. And it was the kind of pain, caustic pain, that you get when you bite into ice cream.

那天早上，我从睡梦中醒来，发现自己的左脑疼痛不止，那种痛楚跟你咬冰淇淋的那种腐蚀性的感觉一样，它抓住我，然后又放开，然后再次抓住，再次放开。

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Rogers believes global surveillance for influenza outbreaks should keep an eye on Arctic ice.

罗杰斯认为，全球对流感爆发的监测应该留意北极冰河。

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Injured Rangers defenseman Marc Staal watched from a suite high above the ice, keeping a close eye on his brothers Eric and Jordan, who are star forwards with the Hurricanes.

WSJ: Miller's SO goal lifts Rangers over Hurricanes

Their discovery was mostly chance (few were seen in the act of falling) but their dark forms mean they will have caught the eye of meteorite hunters who scour desert sands and polar ice fields for rare rocks that can trade for tens of thousands of dollars.

BBC: Mars meteorite 'Black Beauty' is in a class of its own