无法获悉出席人员的确切名单.

No accurate listing of those present could be obtained.

出席人员： 世卫组织总干事陈冯富珍博士将宣布会议开幕。

WHO: WHO Director-General Dr Margaret Chan will open the meeting.

如果讲座进行时或一完成后他们就分布到合适的位置，叫上那些出席人员一块来商讨他们提出的具体问题，这样效果就会更佳。

They can be far more effective if they are distributed at appropriate points during or immediately after the lecture and those attending are required to discuss specific questions arising from them.