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Elizabeth Barrett Browning (1806 - 1861) What was he doing, the great god Pan, Down in the reeds by the river? Spreading ruin and scattering ban, Splashing and paddling with hoofs of a goat, And breaking the golden lilies afloat With the dragon-fly
英语诗歌
In the empty blackness of space surrounded by hostile planets and freezing vacuum, planet Earth is an oasis of life. And all because of our protective cocoon of gas. This blanket of air shapes everything we see on Earth. It protects, insulates and su
探索与发现2014年
The rat grinned. 老鼠龇着牙齿笑。 I'm going to make a night of it, he said. 我要来个欢乐今宵，老鼠说， The old sheep was right - this Fair is a rat's paradise. What eating! And what drinking! 老羊说得对这集市是老鼠的乐
夏洛的网
From ground level to its highest point, the troposphere (or turning sphere) 从地面到最高点，对流层（亦称对流圈） is about ten miles thick at the equator and no more than six or seven miles high in the temperate latitudes where most
万物简史
17 Into the Troposphere 第十七章 进入对流层 Thank goodness for the atmosphere. It keeps us warm. 谢天谢地，我们有了大气。它使我们有了个温暖的环境。 Without it, Earth would be a lifeless ball of ice with an average te
万物简史