- 问题详情:Wetalkaboutpeoplebeing“colour-blind”butveryfewofusareEventhosewhodescribethemselvesascolour-blindarenormallyjustcolourlack.Astronglycolour-blindpersonwillstillbeabletotell20differentcolour,comparedtothe100orsothatnormal-sightedpeoplesee.Pin...
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