夏天的飞鸟，飞到我的窗前唱歌，又飞去了。
秋天的黄叶，它们没有什么可唱，只叹息一声，飞落在那里。
stray birds 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.