名词
中文翻译：最外层的表面
同义词：
['outer layer', 'outer boundary例句：1. The outermost layer of the ocean is constantly changing due to weather conditions.（海洋的最外层由于天气条件的变化而不断发生变化。）']
例句：
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1. The outermost layer of the ocean is constantly changing due to weather conditions.
海洋的最外层由于天气条件的变化而不断发生变化。
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2. The outermost layer of the planet is covered in ice and snow.
行星的最外层被冰雪覆盖。
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3.The outermost layer of the soil is where most nutrients are found.
土壤的最外层是大多数养分的所在地。