我们有义务在公务会议上说佛兰德语。
We are obliged to speak in Flemish in all our official meetings.
我持公务护照，并且有有效B1签证。如果应邀去美国参加学术会议，要办理J 1签证，那么我的B1签证还会有效吗？
I am a service passport holder and have a valid B1 visa. If I am invited to attend an academic conference in the US and apply for a J1 visa, will my B1visa still be valid?
是社会各界进行公务、商务考察，举办各类会议培训、旅游观光、企业员工福利疗养、奖励度假的最佳选择。
Is the official community, business visits, conferences and meetings organized by training, travel and tourism, business convalescence employee benefits, rewards the best choice for a holiday.
是社会各界进行公务、商务考察，举办各类会议培训、旅游观光、企业员工福利疗养、奖励度假的最佳选择。
Is the official community, business visits, conferences and meetings organized by training, travel and tourism, business convalescence employee benefits, rewards the best choice for a holiday.
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