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1·The waves beat upon the seashores.

波浪拍打海岸。

2·The mangrove flourishes on the seashores of tropics and subtropics.

红树林分布于热带和亚热带海岸。

3·Those who have been approved by law to set up waste yards and treatment facilities along seashores and beaches shall build dikes to prevent the wastes from entering the sea.

依法被批准在岸滩设置废弃物堆放场和处理场的，应当建造防护堤，防止废弃物流失入海。