Drink a glass of water - If you're like most people you're not drinking as much water as you should be each day. Get a tall glass add ice and fill it with cold water.
喝一杯水- - -如果你像大多数人一样每天不喝很多水的话,拿一个大杯子放上冰块倒满一杯水。
It is likely that the warm water consistently exits at these locations, but in years that are free of sea ice (like 2011), the polynyas aren't visible and so this cannot be confirmed from images.
有可能暖流一向在这几个地方冒出,但在没有海冰的年份里(例如2011),并不能看到冰穴,所以不能仅从图片上确认这一点。
Estimates kept growing, until researchers could determine how thick the ice sheets - and it looks like it could tally in the billions of tonnes of water - in ice sheets and bound up in minerals.
估算值一直在增长,直到研究人员可以判断冰层的厚度——总量似乎能达到数十亿吨水——以冰层夹杂着矿石的形式存在着。
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