名词
中文翻译：单根绳子
同义词：
['single cord', 'single line']
例句：
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1.The child was playing with a single rope when it suddenly snapped.
孩子在玩一根绳子时，绳子突然断了。
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2.He tied the rope to the tree and climbed up to get a better view.
他将绳子系在树上，爬了上去以便看得更远。
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3. The old man used a single rope to pull himself up from the ground.
老人用一根绳子把自己从地上拉起来。