堡垒bǎolěi 1.在冲要地点作防守用的坚固建筑物。{fort; fortress; stronghold; blockhouse; solid building used for military defence at strategic location} 2.〈比喻fig.〉难于攻破的事物或不容易接受进步思想的人{diehard; hard nut to crack; person not willing to accept progressive ideas}: 封建～{feudal diehard}|科学～{scientific fortress}|顽固～(比喻十分顽固的人)。{(fig.) diehard}