名词
中文翻译：Unknown
同义词：
['continental shelf', 'sea-lane', 'sea-coast', 'sea-ridge']
例句：
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1. The island chain is a natural barrier that separates the two countries.
这个岛屿链是一个自然屏障，将两国分隔开来。
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2. The continental shelf is an area of ocean floor that extends from the shore to the edge of the continent.
大陆架是一片从岸边延伸到大陆边缘的海洋底部区域。
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3. The sea-lane is a narrow strip of land along the coastline where ships can navigate safely.
海道是沿着海岸线的一个狭窄地带，船只可以安全航行。