Writing desks are available, as is a private office and a boardroom for last-minute powwows.

写字台、私人办公室、甚至是会议室，这里一应俱全。

Previous Powwows showed that some attendees may arrive early but it took about an hour for all attendees to arrive.

根据以往聚会经验，有些会员可能提前到达，全部与会者到齐需要延迟一个小时左右。

In my experience this meaning of powwow is fairly common although I do hear from time to time native North American Indian festivals called powwows as well.

据我了解，powwow作为会议的含义较为多见，不过我偶尔也听到，一些北美印第安人的节日也叫powwow。