| 词组 | what has been seen cannot be unseen |
| 释义 | what has been seen cannot be unseenDisturbing or upsetting images are not easily forgotten. Even though I'm back from the battlefield now, what has been seen cannot be unseen. |
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英语词组固定搭配大全包含354030条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。