tributary
n
river or stream that flows into a larger one or into a lake (河川或湖泊的)支流
The Avon is a tributary of the Severn. 埃文河是塞文河的支流. tributary, adj
1 ~ (to sth) (of a river or stream) flowing in this way (指河川)支流的
rivers tributary to the Thames 泰晤士河的支流.
2 [attrib 作定语]
(of a country or ruler) paying tribute(3) to another (指国家或统治者)纳贡的, 进贡的.