unforgettable

详细解释:a. 忘不了的, 令人难忘的

词型变化：

副词:unforgettably名词:unforgettability

英语解释：

形容词 unforgettable:

impossible to forget

例句：

She sat up late that night to write a detailed account of the unforgettable moment.这天夜间，她迟迟没睡，详细地写下这难忘时刻的情景。