名词
中文翻译：后部支柱
同义词：
['rear end', 'rear support']
例句：
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1.The rear post of the car was damaged in the accident.
汽车的后部支柱在事故中受损。
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2.The rear post is designed to support the weight of the vehicle.
后部支柱设计用来支撑车辆的重量。
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3. The rear post is where the seat and backrest are attached.
后部支柱是座椅和靠背连接的地方。