- 問題詳情:Inmycity,therearemoreandmoreprivatecarsontheroad,theycausemanytrafficaccidents.Inordertosolvetheproblems,thegovernmenthasdecidedtoprovide1,000publicbikesforpeopletorent.Thegovernmentencouragedpeopletoridebikesinordertosolvethetrafficproblems....
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