ATriptotheForestOnedayBobtooktwoofhisfriendsintothemoun...
问题详情：ATriptotheForestOnedayBobtooktwoofhisfriendsintothemountains.Theyputuptheirtents(帐篷)andthenrodeofftoaforesttoseehowthetreesweregrowing.Intheafternoonwhentheywereabouttenkilometresfromtheirca...