相关单词近义词 unassailable 攻不破的, invulnerable 固若金汤的, secure 安全的, invincible 不可征服的, untouchable 不可接触的above criticism, 无可非议, shatterproof 抗震的(耐震的..., armoured 披甲的, armored 装甲的, protective 保护的, reinforced 加强的, watertight 不漏水的, unshakable 不可动摇的临近词bullet, bullets相似词bullet point, bullet train, bulletin, bulletin board, bullfight, bullfinch, bullfrog, bullheaded, 返回 bulletproof