- 問題詳情: Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolookat.Onlyrecentlyhavetheycometothinkofitassomethingtolookthrough.Storesdisplaytheirgoodsinlargeglasswindows.Glassbottlesandjarsthatholdfoodanddrinkallowustoseethecontents.Gla...
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