名词
中文翻译：明显界限
同义词：
['boundary', 'limit', 'limit line例句：1. The mountain range is the apparent horizon of the valley.（山脉是山谷的明显界限。）2. The sun sets at the apparent horizon of the ocean.（太阳在海洋的明显界限落下。）']
例句：
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1. The mountain range is the apparent horizon of the valley.
山脉是山谷的明显界限。
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2. The sun sets at the apparent horizon of the ocean.
太阳在海洋的明显界限落下。
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3. The boundary between our two countries is the apparent horizon.
我们两国之间的边界是明显的界限。