How can sky lantern fly high up in the sky?

天灯为什么可以飞到天上去？

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Intense balls of flame rose up into the sky.

炙热的火球冲上天空。

《柯林斯英汉双解大词典》

There was an explosion and the whole sky lit up.

一声爆炸照亮了整个天空。

《牛津词典》

At sunset,when the sun has moved across the sky, the canyon walls give up their fiery reds and golds.

VOA: special.2009.10.07

That water is separated, that bubble has opened up so we've got the sky created And we've got the waters collected in certain areas down here, And we've got sky.

水流被分开，形成了水泡,我们便有了天空,在那里某些地方也有一些水流汇集，我们便有了天空。

耶鲁公开课 - 旧约导论课程节选

Half of her he set up and ceiled it as sky, Pulled down the bar and posted guards.

他将她身体的一半向上提起，变成天空，关上了门闩，派遣了士兵。

耶鲁公开课 - 旧约导论课程节选

"I was smoking outside the door when I looked up at the sky and suddenly the sky lit up with a bright light and something that looked like the sun fell somewhere to the south of Yekaterinburg, " wrote Sergei Bobunets, quoted by AFP news agency.

BBC: Russia meteor eyewitness: 'Something like the sun fell'

"I looked up and saw the sky light up, " he said.

WSJ: MIT Campus Police Officer Fatally Injured in Shooting

"We were up on a second floor balcony and the sky lit up in orange and yellow, " he said.

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