adjective 下载 🔗分享 没有防御的,未设防的 Not defended. Examples : "The castle wall was broken, leaving the city undefended against the invaders. " 城堡的城墙破损了,使得这座城市没有防御,无法抵挡入侵者。 military war 与AI对话词汇游戏阅读练习