![Nobodyknowswhofirstinventedit,buttheumbrellawasusedinve...]( "Nobodyknowswhofirstinventedit,buttheumbrellawasusedinve...")
- 問題詳情：Nobodyknowswhofirstinventedit,buttheumbrellawasusedinveryancienttimes.ProbablythefirsttouseitweretheChinese,backintheeleventhcenturyB.C.Touseitseemssonaturaltoputupanumbrellatokeepthewateroffwhenitrains.Butactuallytheumbrellawasnotinventedasp...
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