One of the major tasks of the three-day mission is extra-vehicular activity (EVA), or spacewalk in this case, mission spokesman Wang Zhaoyao said at a news conference Wednesday.

• 在周三的新闻发布会上，代表团发言人王**说：此次三日之旅的主要任务之一在于舱外活动，这次也就是指太空行走。