名词
中文翻译：七海
同义词：
['seven oceans', 'seven seas']
例句：
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1.The explorers sailed across the seven seas to reach the farthest point of their journey.
探险家们穿越七大洋，到达了他们旅程的最远点。
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2.The ship sailed through seven seas before reaching its destination.
这艘船在穿过七大洋后抵达了目的地。
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3. The sailors faced many challenges while sailing across seven seas.
水手们在穿越七大洋时遇到了许多挑战。