Security officers have carried out a number of house-to-house searches.

安保人员已经多次挨家挨户地搜查。

《柯林斯英汉双解大词典》

Added to clothing, the material protects security officers and soldiers across the world.

这种材料填进衣服里就能保护全世界的安全人员及士兵。

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The official news agency SANA reported Friday that unidentified gunmen had killed two security officers.

官方通讯社SANA周五的报道，称身份不明的枪手射杀了两名官方保全人员。

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After months of growing tension, the head of the company sent three hundred private security officers to break up the strike and protect non-union workers.

VOA: special.2010.06.10

Because not only the NSA homeland security, the governors, members of congress, cabinet officers.

因为不仅仅国家安全顾问,国土安全，政府官员，国会议员，内阁官员都想见总统。

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Added to clothing, the material protects security officers and soldiers across the world.

VOA: special.2010.02.09

Wal-Mart security officers were also present overnight, but he said he did not know how many.

CNN: Wal-Mart worker dies in rush; two killed at toy store

Defence lawyers alleged that Mohammed and Mousavi were interrogated by Israeli security officers while in detention.

BBC: Iranians jailed for life in Kenya over terror charges

In late December, Syrian authorities handed over the last three corpses to Lebanese General Security officers.

WSJ: As Syrian Crisis Intensifies, Fight Bleeds Into Lebanon