名词
中文翻译：Unknown
同义词：
['safety belt', 'safety harness', 'restraint device']
例句：
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1. The driver was wearing a safety belt when the accident happened.
事故发生时，司机系着安全带。
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2. The child was safe in his safety belt during the car crash.
在车祸中，孩子系着安全带很安全。
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3. The construction site had safety belts installed to prevent falls from heights.
施工现场安装了安全带以防止高处坠落。