ATriptotheSmithsonianMs.DeJohnstoodatthefrontoftheroom....
问题详情：ATriptotheSmithsonianMs.DeJohnstoodatthefrontoftheroom.“Okay,everyone,”shebegan,“asyouallknow,We’llvisittheSmithsonianInstitutiononMonday.Wearegoingtospendsometimethismorningdiscussingwhat...