As the comet nears the sun, its ice melts, releasing gas and dust that stream away into space.

当彗星靠近太阳时，它的冰层融化，释放的气体和尘埃飘向太空。

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The stream has frozen up; you can see the fish trapped in the ice.

小河冻起来了，你可以看见冻在冰里的鱼。

《新英汉大辞典》

They said the movement of a huge stream of ice, about 100km wide and 800m thick, creates seismic waves and can be felt through the entire Antarctic.

数据显示，这块冰流宽约100公里，厚约800米。 每次移动时，冰流发出的震波波及整个南极洲。

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The study revealed a complex network of ponds and rivers, the largest of which occurred under the Whillans ice stream and covered an area of 500 sq km (190 sq miles).

BBC: Satellite images reveal the changes in volume of water

Crossing a medial moraine, we reach a pothole in the ice with a stream plunging into it.

BBC: The perfect trip: Switzerland

It's seems like only yesterday we were all crowded around our laptops, watching a live stream and getting amped for Ice Cream Sandwich.

ENGADGET: Jelly Bean, Android 4.1 revealed by Google, rolling out in mid-July