“中游”造句

在湖中游了一会儿泳后,约翰感到精神振奋.
John felt refreshed after a quick plunge in the lake.

船划到了中游.
The boat pulled out into midstream.

我们经常把一条河分成三部分:上游、中游和下游.
We often divide a river into three parts, that is the upper, middle and lower reaches.