unforgetable,(形容词)难忘的。原型forget，“忘记”的意思，forget前面+un表否定,后面+able为形容词形式,
unforgettable[英][ˌʌnfəˈgetəbl][美][ˌʌnfərˈgetəbl]
adj.难忘的; 铭刻肺腑的;
易混淆单词：Unforgettable
例句:
1.
Who forgets the unforgettable?
谁能忘记无法忘记的人?
2.
"People find it amusing, even funny actually," said liu xiaoyun, a folk music professor at nanjing university of the arts. "That's why it's unforgettable."
南京大学艺术学院民乐教授刘晓云（音译）说：“人们觉得这首歌很有趣，甚至很搞笑，这便是它令人难忘的原因了。”
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