protective barrier
📖 释义
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物理屏障; 生物屏障; 心理防线
💬 例句
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Construction workers erected a protective barrier around the excavation site.
工人们在挖掘现场周围搭建了防护屏障。
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Mucus serves as a protective barrier in the respiratory system.
黏液在呼吸系统中起着保护屏障的作用。
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She relied on her career achievements as a protective barrier against feelings of inadequacy.
她依靠事业成就作为抵御不足感的保护屏障。