| 单词 | security clearance |
| 释义 | security clearancenoun : special permission given only to people who are approved to know or see secret things The documents are only available to people with security clearance from the government. |
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英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。