名词
中文翻译：Unknown
同义词：
['back saw', 'backsaw', 'backsaw blade']
例句：
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1. The carpenter used a backsaw to cut the wood.
木匠用背锯来切割木头。
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2. The old man was usinghis back saw to clear a path inthe woods.
老人正在使用他的背锯在树林里开辟一条小径。
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3. The backsaw was a crucial tool for the constructionproject.
背锯是这个建筑项目的关键工具。