Topic: Learn the connection between maintaining public transportation and SDGs form the book "Railway Heroes in the Night time" Lydia invited her engineer friend Shi Ping to read together! He was one of the engineer for maintaining rail way before🌟🌟🌟

Topic: 《Glue and hair - the real story of 10-year-old Lydia》x SDG3/SDG10/SDG12

Topic: 《Isaac and His Amazing Asperger Superpowers!》x SDG3+4+10