You can use shore, coast, and beach to talk about the piece of land beside a stretch of water. The shore is the area of land along the edge of the sea, a lake, or a wide river. The coast is the area of land that lies alongside the sea. You may be referring just to the land close to the sea, or to a wider area that extends further inland. A beach is a flat area of sand or pebbles next to the sea.

shore，coast 和 beach 都可以用来指大片水域的岸边陆地。shore 指海洋、湖泊或宽广的河流岸边陆地。coast 是沿海陆地区哉，既可以指紧靠海边的区域，也可以泛指沿海地区。beach 指海边的沙滩或碎石滩。