名词
中文翻译：渡口
同义词：
['ferry', 'wharf', 'landing']
例句：
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1.The portage is a crucial part of the journey.
渡口是旅程中至关重要的一部分。
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2.The boatmen had to carry all their gear across the portage.
船夫们不得不把他们所有的装备运过渡口。
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3.The portage was too difficult for the old man to cross alone.
对于老人来说，独自过渡口太困难了。