名词中文翻译
中文翻译：次要的外层结构
同义词：
['subordinate involucre', 'secondary exocarp']
例句：
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1. Theplant's secondary involucre is a protective layer that helps it resist damage from the environment.
植物的次要外层结构是一种保护层，有助于它抵抗环境造成的损害。
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2.The insect's secondary involucre is designed to protect its soft body parts from predators.
昆虫的次要外层结构是为了保护其柔软的身体部分免受捕食者的伤害。
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3.The tree's secondary involucre is made up of tougher, more durable materials than the primary bark.
树的次要外层结构由更坚固、更耐用的材料组成，比主要的树皮更为坚硬。