名词
中文翻译：贝壳
同义词：
['shell', 'oyster shell']
例句：
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1. The crab is a delicacy in many Asian countries.
螃蟹是许多亚洲国家的特色美食。
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2. The shell of the oyster is used to make jewelry.
牡蛎的壳被用来制作珠宝。
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3. The shellfish industry is an important source of income for fishermen.
贝类养殖业是渔民的重要收入来源。