Volunteer: The Expo Center serves as the operation management center, ceremony &conference center, press center, and forum &activity center during the Expo.

志愿者：世博中心是世博会举办期间的运营指挥中心、庆典会议中心、新闻中心、论坛活动中心。

youdao

Volunteer: The Expo Center serves as the operation management center, ceremony &conference center, press center, and forum &activity center during the Expo.

志愿者：世博中心是世博会举办期间的运营指挥中心、庆典会议中心、新闻中心、论坛活动中心。

youdao