名词
中文翻译：第二层包装
同义词：
['second layer', 'second stage', 'secondarypackaging']
例句：
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1. The companyhas introduced a new second-level packagingsystem to improve its product's shelflife.
该公司推出了一种新的第二层包装系统，以延长其产品的保质期。
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2. The second-level packaging is designed to protect thefragile items during transportation.
第二层包装设计用来在运输过程中保护易碎物品。
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3.The second-level packaging is made ofeco-friendly materials and reduces waste.
第二层包装由环保材料制成，减少了废物。