Acrowlivedinathickforestfilledwithmanybirds.Thecrowwasv...
問題詳情：Acrowlivedinathickforestfilledwithmanybirds.Thecrowwasverycontentwithhiscarefreelifeuntilhesawaswanoneday.Theswanwasflyingoveralake.“Thisswanissowhite,”hethought,“andIamsoblack.Itmustbetheh...