名词
中文翻译：外层极限
同义词：
['outer boundary', 'outer edge例句：1. The outer limit of the ocean is where the tides meet.（海洋的外部极限是潮汐相遇的地方。）']
例句：
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1. The outer limit of the ocean is where the tides meet.
海洋的外部极限是潮汐相遇的地方。
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2.The outer limit of the park is marked by a towering tree.
公园的外部极限被一棵参天大树标出。
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3.The outer limit of the city's expansion was reached at the construction of the new highway.
城市扩张的外部极限在新建高速公路的建设中被达到。