ATriptotheForestOnedayBobtooktwoofhisfriendsintothemoun...
問題詳情：ATriptotheForestOnedayBobtooktwoofhisfriendsintothemountains.Theyputuptheirtents(帳篷)andthenrodeofftoaforesttoseehowthetreesweregrowing.Intheafternoonwhentheywereabouttenkilometresfromtheirca...