Word: 流域 (liúyù) 流域 dictionary entry liúyù river basin; valley; drainage area Full dictionary entry for 流域 Example sentences using 流域 2 sentences, showing page 1 of 1. 河水污染影响了整个流域。 Héshuǐ wūrǎn yǐngxiǎngle zhěnggè liúyù. The river pollution affected the whole drainage area. 这条河的流域面积很大。 Zhè tiáo hé de liúyù miànjī hěn dà. This river has a very large drainage area.