一个较难解释的英语句子-----------不是高手勿进StreetPingPong—Ping!Doyouliketabletennis?IfyouhadtravelledtocitiesintheUKlikeLondonorBirminghamlastsummer,youmighthaveseenoneofthedozensoffreetablesthatw

　　一个较难解释的英语句子-----------不是高手勿进

　　StreetPingPong—Ping!

　　Doyouliketabletennis?IfyouhadtravelledtocitiesintheUKlikeLondonorBirminghamlastsummer,youmighthaveseenoneofthedozensoffreetablesthatwerethereaspartofaprojectcalledPing!.

　　WhatisPing!

　　Ping!isathree-yeartabletennisproject.Ithasbeenrunningsince2010andthisyear,2012,isthefinalyear.TheideaistoputfreetabletennistablesineightdifferenttownsintheUKforfourweeksduringthesummer.Eachtablecomeswithitsownbatsandballsandisfreetoplay.Youcanfindthetablesoutdoors.

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　　解释破折号后Ping是怎么回事?如何翻译呢?这是什么用法,举例说明.用自己的话解释哦.