士人

Germany was united under Prussian hegemony after 1871.

1871年后，在普鲁士人下，德国一了。

Through the descriptions of the swallow,TU Fu presented his intrapersonal changes and experiences during the course of pursuing his individual political ideality and moral ideality.

杜甫在诗歌中对燕子吟诵,勾画出了他在个人政理想追求士人道德理想追求过程中内心变化心路历程。