形容词
中文翻译：不可记忆的
同义词：
['incapable of remembering', 'indelible', 'unforgettable']
例句：
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1. The event was so unmemorable that it's hard to recall the details.
这个事件是如此难以记住，以至于很难回忆细节。
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2. His words were so unmemorable that they left no lasting impression on me.
他的话是如此难以记住，以至于它们没有给我留下任何持久的印象。
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3. This experience will be unforgettable for years to come.
这次经历将在未来几年内成为难忘的回忆。