游击队员的山中据点从未被侵略军攻破。
The mountain fastness of the guerrilla fighters had never been breached by the invading army.
▼点击显示答案
解释
fastness 指位于险峻山中的军事据点、难以被攻克的堡垒。
The mountain fastness of the guerrilla fighters had never been breached by the invading army.
fastness 指位于险峻山中的军事据点、难以被攻克的堡垒。