相关Tousitseemstonatural的文学知识

问题详情：   Tous,itseemstonaturaltoputupanumbrellatokeepthewateroffwhenitrains.Butinfacttheumbrellawasnotinventedasprotectionagainsttherain,Itsfirstusewasasashade(遮蔽)againstthesun.Nobodyknowswhofi...