Swallows migrate south in winter.燕子在冬天迁徙到南方。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 come by groups at the advent of spring.春天来临时燕子成群飞来....
The magnolias are in blossom and they attract many swallows.玉兰花开吸引了许多燕子.There were swallows in the cloudless blue sky...燕子在万里无云的蓝天飞翔。The swallows are building a nest under the roof of our house.燕子正在我们的屋檐下筑巢.Thoughts pass...