- 問題詳情: Skin-diving(潛水)isanewsport.Thissporttakesyouintoawonderfulnewworld.Itislikeavisittothemoon!Whenyouareunderwater,itiseasyforyoutoclimbbigrocks,becauseyouarenolongerheavy.Here,underwater,everythingisblueandgreen.Duringtheday,thereisenough...
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