名词
中文翻译：随机长度
同义词：
['unpredictable length', 'unspecified length例句：1. The random length of the tunnel made it difficult to navigate.（隧道的随机长度使得导航变得困难。）']
例句：
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1. The random length of the tunnel made it difficult to navigate.
隧道的随机长度使得导航变得困难。
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2.The random length of the rope was enough to catch the ball.
绳子的随机长度足以抓住球。
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3.The random length of the rope was sufficient to tie the knot.
绳子的随机长度足够打结。