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单词 security clearance
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释义  seˈcurity ˌclearance noun [countable, uncountable]  LET/ALLOWofficial permission for someone to see secret documents etc, or to enter a building, after a strict checking process 〔经过严格安全审查后〕对参加机密工作的批准；出入某建筑物的许可Examples from the Corpussecurity clearance• Another son, Ron, is a Lockheed employee with a security clearance.• In preparation for his job at Commerce, Huang received an interim security clearance while he was still working at Lippo.• A visitor without security clearance must be signed for by the sponsor and accompanied at all times.seˈcurity ˌclearance nounChineseSyllable  documents Corpus permission someone official or for secret to etc, see
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