其封域之内,则有原隰坟衍,通望弥博。
译文:在这片疆域之内,有平原、湿地、丘陵和广阔的田野,一眼望去无边无际。
La identidad no es algo dado, sino algo que se construye.
The beauty of formal methods lies in their ability to provide absolute certainty about the correctness of a system.