encircle/ɪnˈsɜ:kl; ɪn`səkl/ v[Tn esp passive 尤用於被动语态]form a circle round; surround 环绕; 围绕; 包围 a lake encircled by trees 树木环绕著的湖 enemy troops encircling the town 包围该城的敌军.
牛津英汉双解词典