It may have formed from an unusually iron-rich part of the primordial cloud that gave birth to all the planets, or it may have had a normal rocky shell that got blasted or fried off.

有可能是原始星云大爆炸形成各种行星的时候，刚好由一块比较特殊的含铁量丰富的星云形成的，也有可能它的地壳表面原来也是石头，后来被太阳烤焦后变成的。

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So Saturn might once have had more-one of which could have had a rocky core surrounded by a shell of water ice.

因此，土星也许曾经拥有多个颗卫星，其中一颗可能是冰层包裹着岩石内核的样子。

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These were called 'Rococo', a taste that sprang from the French word 'Rocaille' which literally meant rocky or shell encrusted and which flourished between 1730 and 1780.

“洛可可”一词来源于法国的单词“Rocaille”，意思是用石子和贝壳做的装饰。从1730年到1780年洛可可风格风靡一时。

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