阿根廷海岸警备队震惊地发现，冰山群正沿着大西洋海岸漂移。

The Argentina coast guard was astonished to find icebergs floating along the Atlantic coast.

海岸沙丘分类一直是海岸风沙地貌研究的重要基础问题之一。

The classification of coastal dunes is the most important basic problem in the research on the landscape of the wind drift sand in coastal region.

海岸卫队，海岸警备队：国家武装力量的分支，负责海岸防卫，保护海上生命和财产，实施海关法、移民法和航行法。

The branch of a nation's armed forces that is responsible for coastal defense, protection of life and property at sea, and enforcement of customs, immigration, and navigation laws.

海岸正在慢慢地被冲蚀。

The coast is slowly eroding away.

该海岸未设防，易受攻击。

The coast was undefended and lay open to attack.