- 问题详情:Whenweseewell,wedonotthinkaboutoureyesveryoften.Itisonlywhenwecannotseeperfectlythatwerealizehowimportantoureyesare.Peoplewhoarenear-sightedcanonlyseethingsthatareveryclosetotheireyes.Everythingelseseemsblurry(不清晰).Manypeoplewhodoalotofwor...
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