Delta lies in the intermediate zone between the sea and land or lake and land, and it is also a very important part of them.

三角洲一般位于海(湖)陆之间的过渡地带，是海(湖)陆相的重要组成部分。

youdao

These two species occur in the intermediate zone between rocks and sandy floors, at depths ranging from 3-20 m (9-60 feet).

这两个品种生活在暗礁和沙砾层的中间地带，大约水深在3—20米(9—60英尺)。

youdao

These two species occur in the intermediate zone between rocks and sandy floors, at depths ranging from 3-20 m (9-60 feet).

这两个品种生活在暗礁和沙砾层的中间地带，大约水深在3—20米(9—60英尺)。

youdao