Dorothy loves listening to a podcast for kids called Ear Snacks. Its hosts are Andrew and Polly. One episode mentions that their audience listens to episodes again and again, which is true for Dorothy.
Dorothy asked, "Since kids listen to the episodes again and again, don't Andrew and Polly get tired of doing it again and again?"
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I explained that Andrew and Polly record the episode once and then kids listen to the recordings multiple times. So Dorothy asked me, "Then how do Andrew and Polly know that kids listen again and again?"