名词短语
中文翻译：后退的附着物
同义词：
['retracted attachment', 'retractable attachment例句：1. The engineer hadto back off the brakes to avoidhitting a pedestrian.（工程师不得不松开刹车以避免撞到行人。）2. The company decided to back offon its initial investment in the new project.（公司决定对新项目的初始投资持保留态度。）3. The scientist found that the backing-off of the reaction was dueto the decrease in temperature.（科学家发现反应的后退是由于温度的降低。）']
例句：
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1. The engineer hadto back off the brakes to avoidhitting a pedestrian.
工程师不得不松开刹车以避免撞到行人。
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2. The company decided to back offon its initial investment in the new project.
公司决定对新项目的初始投资持保留态度。
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3. The scientist found that the backing-off of the reaction was dueto the decrease in temperature.
科学家发现反应的后退是由于温度的降低。