I didnt go swimming for a long time?

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swimming is my favorite sport .when i was a child ,i go swimming with my relatives in the river . i like the feeling when swimming .at the time ,the pollution is not so serious .nowadays the pollution is getting more and more serious ,i cannot go swimming in the river anymore .i have to go to swimming in the swimming pool but i don't like the feeling in the swimming pool because the water in the swimming pool didnt flow .do u have the same feeling ?