Swallows come by groups at the advent of spring.

春天临时燕子成。

The swallows are nesting in the woodshed.

燕子正在小棚里筑巢呢。

The swallows are building a nest under the roof of our house.

燕子正在我们的屋檐下筑巢。

Swallows begin their migration south in autumn.

燕子在秋季开始向南方迁移。

The swallows were skimming over the water.

燕子掠水面。

Swallows were darting through the clouds.

燕子穿急。

The swallows nested under the eaves.

燕子筑 巢于屋檐 下。

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的吟诵,勾画出了他在个人政治理想和士人道德理想程中的内心变化和心路历程。