1
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The upper course is the bedding of our river.

2
00:00:10,259 --> 00:00:16,260
In the middle course, the river gets bigger and wider.

3
00:00:16,260 --> 00:00:19,260
It's also beginning to slow down.

4
00:00:19,260 --> 00:00:27,260
In the running flow, it's flatter.

5
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The lower course is the last stage of our river.

6
00:00:31,260 --> 00:00:40,259
the river becomes wider and the water flows more slowly.

7
00:00:40,259 --> 00:00:49,259
During this state, the river empties into a lake or a sea.

8
00:00:49,259 --> 00:01:01,259
The meeting is called the mouth of a river.

9
00:01:01,259 --> 00:01:19,239
The shore is the source of favor and love in the riverbeds, the land of love.

10
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What was it?

11
00:01:21,239 --> 00:01:30,450
The riverbed is the land over which a river flows.

12
00:01:30,450 --> 00:01:34,590
And the rivers have a boundary.

13
00:01:35,269 --> 00:01:40,609
It's in the middle course of a river.

14
00:01:40,810 --> 00:01:46,129
This is when a river goes on the way and way back over.

15
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A river is a river with all the...

16
00:01:54,829 --> 00:01:56,069
All the way.

17
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Rivers.

18
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Dad, and please enter a little bit.