名词
中文翻译：大号拐杖
同义词：
['trunk crutch', 'boom stick']
例句：
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1.He used a boom crutch to help him walk across the bridge.
他用大号拐杖帮他走过桥。
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2.The old man was using his boom crutch as he walked down the street.
老人拄着大号拐杖在街上走着。
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3. The baby needed a boom crutch to support her while she slept.
宝宝需要一根大号拐杖来支撑她睡觉。