| 单词 | tighten security |
| 释义 | tighten security A home ministry official confirmed that security had been tightened at all airports. Times, Sunday Times (2010) The Justice Ministry said they were tightening prison security. The Sun (2010) The police were called in and security was tightened . Times, Sunday Times (2015) |
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英语词典包含147115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。