关于大海的介绍（英文）

综述：The sea is the general name of the broadest water body on earth. The earth's surface is divided by continents into vast water areas connected with each other, which is called the ocean. 

The central part of the ocean is called the ocean and the marginal part is called the sea. They communicate with each other to form a unified water body.

翻译：大海是地球上最广阔的水体的总称。地球表面被各大陆地分隔为彼此相通的广大水域称为海洋，海洋的中心部分称作洋，边缘部分称作海，彼此沟通组成统一的水体。