点击下方单词,选择对的这个单词
1. 不会受伤害的;刀枪不入的;攻不破的If someone or something is invulnerable, they cannot be harmed or damaged.
1. immune to attackimpregnable
e.g. gunners raked the beach from invulnerable positions on the cliffs
多通过句子记忆单词,而不是单独死记硬背。