名词
中文翻译：外层覆盖物
同义词：
['outer layer', 'outer skin', 'outer shell例句：1. The outer layer of the car is made of a special material.（汽车的外层是用一种特殊的材料制成的。）']
例句：
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1. The outer layer of the car is made of a special material.
汽车的外层是用一种特殊的材料制成的。
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2. The outer layer of the ocean is covered in seaweed.
海洋的外层被海藻覆盖。
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3.The outer layer of the planet is composed of rocks and minerals.
行星的外层由岩石和矿物组成。