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Leave your Earth pan outside. Take the moon pan inside and place a cardboard box over the top of it, weighted down with something heavy.
把代表地球的平底鍋放在戶外，然后把代表月球的平底鍋放在室內(nèi)并在上面放上一個硬紙盒，再壓上一些重物。
Wait a couple days and check again. The moon pan will look the same.
幾天后再觀察一遍，你會發(fā)現(xiàn)，代表月球的平底鍋依舊如初。
More than likely, though, the Earth pan won’t. Maybe the wind blew the sand around. Maybe it rained or snowed.
而代表地球的平底鍋卻變化巨大，也許風(fēng)把沙子吹得散落各處。也許被雨雪沖刷過。
The point is that Earth has an atmosphere, which results in wind, rain, rivers and streams, lots of motion.
關(guān)鍵就在于地球有一層大氣，能夠產(chǎn)生風(fēng)、雨、河流、小溪等引起運動的事物。
Of course, Earth is also volcanically active: the ground shakes, lava pours out, continents rise and fall.
當(dāng)然，地球的火山運動是非?；钴S的，會引發(fā)地震、巖漿噴發(fā)、陸地沉降。
By comparison, nothing much ever happens on the moon–except for the impacts that give rise to those craters–even across billions of years.
相比之下，月球在數(shù)十億年里基本不會產(chǎn)生這些現(xiàn)象（形成火山坑的撞擊除外）。
So an impression on the moon can be a lasting impression indeed!
因此，你在月球上留下的印記會經(jīng)久不衰的！
譯文為可可英語翻譯，未經(jīng)授權(quán)請勿轉(zhuǎn)載!
