15我们对米加国际出版公司的高层管理人员进行了一次调查。
"We distributed a survey to senior management at International Mega-Publishing, Inc."
在世卫组织非洲区域办事处和世卫组织国家办事处的协助下，卫生部进行了一次调查。
An investigation was carried out by the Ministry of Health, assisted by the WHO Regional office for Africa and the WHO country office.
在研讨会开始之前，粮农组织对太平洋岛屿地区IUU捕鱼和港口国现行管制措施进行了一次调查。
In advance of the event FAO conducted a survey of IUU fishing and existing port state controls in the Pacific Islands region.
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