名词
中文翻译：软壳
同义词：
['soft layer', 'soft cover例句：1. The soft mantle of the ocean covers most of the land.（海洋的软壳覆盖了大部分陆地。）']
例句：
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1. The soft mantle of the ocean covers most of the land.
海洋的软壳覆盖了大部分陆地。
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2.The soft mantle of the earth is constantly being renewed by the sun's heat.
地球的软壳不断地由太阳的热量更新。
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3. The soft mantle of the moon is believed to be made up of ice and rock.
月亮的软壳被认为是由冰和岩石组成的。