名词
中文翻译：Unknown
同义词：
['stretcher', 'stretcher', 'extender']
例句：
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1. The stretcher is designed to support the weight of heavy objects.
这个支架设计用来支撑重物的重量。
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2. The stretcher was used to help the injured person regain their mobility.
这个支架被用来帮助受伤的人恢复他们的活动能力。
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3. The stretcher was a crucial tool in the construction of tall buildings.
这个支架是建造高层建筑时的关键工具。