Word: 河口 (hékǒu) 河口 dictionary entry hékǒu estuary; the mouth of a river Full dictionary entry for 河口 Example sentences using 河口 3 sentences, showing page 1 of 1. 河口的沉积越来越厚了。 Hékǒu de chénjī yuèláiyuè hòule. The deposit at the river mouth is getting thicker and thicker. 河水在河口流进大海。 Héshuǐ zài hékǒu liú jìn dàhǎi. The river flows into the sea at its mouth. 渔船在河口附近捕鱼。 Yúchuán zài hékǒu fùjìn bǔyú. Fishing boats are catching fish near the estuary.