1.
Ganges-Yamuna Doab
恒河-亚穆纳河河间地区
2.
Volga-Don Ship Canal
窝瓦河-顿河通航运河
3.
the glacial period [ age, era, epoch ]
冰河时代, 冰河期
4.
The small streams rise when the main stream is high; when the main stream is low, the small streams nm dry.
大河有水小河满，大河无水小河干。
5.
The bank or area alongside a river.
河边，河畔河流的岸边或沿河流的地区
6.
The Avon disgorges into the Severn.
埃文河流入塞文河.
7.
The water is coming up to the bank.
河水涨到跟河岸相平了。
8.
River often overflow their bank.
河流常常淹没河岸。
9.
The River Nile is the longest river in the world.
尼罗河是世界最长的河。
10.
And the Nile is the longest river.
尼罗河是最长的河。
11.
The river is as long as that one.
这条河和那条河一样长。
12.
There's a river, And it's wide.
那里有一条河，河很宽。
13.
The water swirled and it was wide.
河水打着漩涡，河面宽阔。
14.
The stream debouches into the estuary.
这条河流入河口湾.
15.
Throw it into the river and the river starts boiling at once.
抛到河里，河水马上沸腾；
16.
Ganges-Brahmaputra Estuary
恒河-布拉马普特拉河口
17.
This river divides at its mouth.
这条河在河口处分岔。
18.
The Yellow River is the second longest river in China.
黄河是中国第二大河。