名词
中文翻译：Unknown
同义词：
['dust shield', 'dust protector']
例句：
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1. The dust guard on the car prevents the engine from getting dirty.
汽车上的防尘罩防止发动机变脏。
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2. The worker used a dust guard to protect his eyes from flying debris.
工人使用防尘罩来保护他的眼睛免受飞散的碎片伤害。
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3. The construction site had a dust guard in place to keep the workers safe.
施工现场安装了防尘罩，以确保工人的安全。