adjective 下载 🔗分享 难以忘怀, 刻骨铭心 Very difficult or impossible to forget Examples : "The things he subjected me to were horrible and unforgettable." 他对我做过的那些事太可怕了, 简直让人难以忘怀。 mind sensation emotion 与AI对话词汇游戏阅读练习