(河口)河口湾;入海口:河流与海洋(或海湾)交汇处的半封闭水域,淡水与海水在此混合,潮汐影响明显。(也可泛指“河口地区/河口水域”。)
/ˈestʃuˌɛri/(英式常见)
/ˈɛstʃuˌɛri/(美式常见)
The river widens into an estuary near the coast.
这条河在靠近海岸处变宽,形成河口湾。
Because the estuary is rich in nutrients, it supports birds, fish, and shellfish, but it is also vulnerable to pollution from upstream.
由于河口湾营养盐丰富,它养育鸟类、鱼类和贝类,但也容易受到上游污染的影响。
estuary 来自拉丁语 aestuarium,与 aestus(“潮汐的涌动、波涛;也有‘热’之意”)相关,强调河口处受潮汐影响、海水涌入与河水交汇的动态特征。