名词
中文翻译：外骨骼
同义词：
['exoskeleton', 'exoskeleton-like structure']
例句：
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1. Thespider's exoskeleton is made up of eight legs anda body.
蜘蛛的外骨骼由八条腿和身体组成。
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2. Theexoskeleton ofthe crab provides protection against predators.
螃蟹的外骨骼提供了对捕食者的防护。
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3. The exoskeleton of the octopus isunique in that it has no backbone.
章鱼的外骨骼独特，因为它没有脊柱。