** Enjoy this fast version of Episode #700. Listen to the fast audio of our lessons by signing up for a free trial at PlainEnglish.com

Today's story: America's national parks are an important part of the country's natural landscape and they attract millions of visitors per year. Some parks preserve wilderness areas. Others have pristine beaches. Two parks include networks of caves. All are preserved for future generations and open to visitors.

Also in this episode: Learn English expression 'one of a kind'

Full lesson: https://plainenglish.com/700

Full lesson: https://plainenglish.com/700

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