“燕子”的英语？

“燕子”的拼音为：yàn zi...

燕子在冬天迁徙到南方。Swallows migrate south in winter.燕子正在我们的屋檐下筑巢.The swallows are building a nest under the roof of our house.春天来临时燕子成群飞来.Swallows come by groups at the advent of spring....