An incident may cause stress for staff tasked with security duties.

一个突发事件可能会是负责安全工作的人员产生压力。

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To fulfill the hotel security duties and procedures to ensure the safety of customers, employees, hotel, and hotel assets.

履行酒店安全职责和程序，以确保顾客、员工、酒店和酒店资产的安全。

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The key to security service is whether or not it can grow and expand steadily and carry out security duties with high quality.

保安服务业能否不断地进一步发展壮大，高质量地开展保安勤务是其关键所在。

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The largely Sunni militias, which include some former insurgents, have assisted in security duties.

CNN: U.S. deaths in Iraq down 66 percent from last year

The Egyptian military has taken over security duties from the police in the restive city of Port Said, the interior ministry has said.

BBC: Egypt police withdraw from Port Said

During his tour of duty in Afghanistan, Gen Allen, 59, managed the transfer of security duties across much of the country to the Afghan army and police.

BBC: US General John Allen. File photo