stray brids of summer come to my window to sing and fly away.and yellow leaves of autumn,which have no songs,flutter and fall there with a sign.夏天离群漂泊的飞鸟，飞到我的窗前鸣啭歌唱，一会儿又飞走了。而秋天的黄叶无歌可唱，飘飘零零，落在窗前，只留一声叹息。