1.
The Avon is a tributary of the Severn.
埃文河是塞文河的支流.
2.
branch of a river that forms a backwater
（形成回水的）河的支流.
3.
Several rivers are tributary to the Ganges.
有好几条河都是恒河的支流。
4.
A branch of a river that flows away from the main stream.
支流，分流从主干河流岔流出的支流
5.
a tributary of the Missouri River.
密苏里河的一条支流。
6.
a tributary of the Ohio River.
俄亥俄河的一条支流。
7.
a tributary of the Columbia River.
哥伦比亚河的一条支流。
8.
a tributary of the Rio Grande.
格兰得河的一条支流。
9.
a tributary of the Mississippi River.
密西西比河的一条支流。
10.
a river and all of its tributaries.
江河和它们所有的支流。
11.
a tributary of the Platte River.
普拉特河的一条支流。
12.
a natural stream of water smaller than a river (and often a tributary of a river).
水量小过河流的自然水流，常常充当河流的支流。
13.
A divergent section of a river, especially near the mouth.
河流分支河流的分岔部分，特别是近河口地区
14.
The missouri river be the chief tributary of the mississippi
密苏里河是密西西比河的主要支流
15.
The Missouri River is the chief tributary of the Mississippi.
密苏里河是密西西比河的主要支流。
16.
The small river is a branch of the Huai River.
这条小河是淮河的一条支流。
17.
The Ohio River is one of the tributaries of the Mississippi River .
俄亥俄河是密西西比河的一条支流。
18.
A body of water, such as a creek or small river, that is a tributary of a larger body of water.
支流较大水域的一个支流，如溪流或小河