i.ron.boundadj.(形容词)Bound with iron.用铁捆缚的Rigid and unyielding:刻板的;严酷的:例句:an ironbound moral code.刻板的道德准则Bound with rocks and cliffs:岩石和峭壁围绕的:例句:ironbound coasts.峭壁围绕的海岸