动词短语
中文翻译：逆流而上
同义词：
['go upstream', 'swim against the current']
例句：
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1.We decided to go up the river and explore the caves.
我们决定逆流而上，探索洞穴。
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2. The boatman rowed up the river to reach the island.
船夫逆流而上到达了岛屿。
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3.She swam up the river to get to her destination.
她游过河流到达了她的目的地。