estuary

详细解释:n. 河口, 港湾

词型变化：

名词复数:estuaries形容词:estuarial

英语解释：

名词 estuary:

the wide part of a river where it nears the sea; fresh and salt water mix

例句：

The river opens out suddenly into a broad estuary.江面忽然开阔起来，形成一个宽广的河。