29，，Xicheng District Map2021“Beautiful China  ”，The activity is shown in the figureDistrict Ecological Environment Bureau、，Invited to Beijing Zoo，“Talking about cattle”，。

“  ”It is a special brand lecture held by Zhongrui sustainable development information center of the library，、、Garbage distribution、、Green lifelive、。2020，，，We had a live interaction，，，，202011，view3000More than one person time。

Sino Swedish sustainable development information center is the center of Library and SwedenLIFE，Providing reader services in the field of information technology。，“Talk about the year of the oxcattle”，2021，system，，Carry out environmental protection activities with rich contents，China's green ideas are passed on to every reader。

2021year210