off-site       
noun [ C ]  business specialized (also offsite) uk/ˌɒfˈsaɪt/ us/ˈɑːfˌsaɪt/
 (远离写字楼、工厂等的)异地会议,异地活动
a meeting or other event that happens away from an office building, factory, etc.
  Most business events are physical gatherings: off-sites at posh resorts, training seminars at conference centres.  大多数商务活动都是线下的实体聚会: 豪华度假村的异地会议、会议中心的培训研讨会等等。 
 I know a great place for an offsite. 我知道一个很棒的地方适合举行异地会议。 
 - More examples
 - Participants often assume that the off-site is just a routine meeting.
 - The scope of the matters discussed at a strategy off-site is broader than at the typical management meeting.
 - Sustaining a high-performing team isn't solely done via an off-site at a nice hotel.