燕子是很古老的飞鸟。殷商以前,它就飞翔于历史的天空了。《诗经·商颂》说到商朝的兴起,有一个神圣的开端:“天命玄鸟,降而生商。”玄鸟就是燕子。燕子浑身“乌衣”,以貌取名,“玄鸟”二字自然是朴素的。不过,能够肩负上天的使命,表明它的身份毕竟不同于凡鸟。事实上,在古典文 Swallows are very old birds. Before Shang Shang, it flew in the sky of history. The Book of Songs and Songs of Shang Dynasty mentioned that the rise of the Shang dynasty had a sacred beginning: “The mythical bird of the heavens was born and descended from the dynasty.” The mysterious bird is a swallow. Swallows are among the “wuyi” and are named after the appearance. The word “Xuanxuan” is naturally simple. However, being able to shoulder the mission of heaven shows that its identity is different from that of Van. In fact, in classical Chinese