It's 10 hours of productivity taken from the rest of the organization to have this one-hour meeting, which probably should have been handled by two or three people talking for a few minutes.
这个10小时的会议是挪用了其他组织或其他人的时间， 这才有了这1小时的会议， 这会议本该是由2个或3个组织者 简短的发言组成。