This was an unprecedented press conference!
This was history's first live premiere of a documentary!
Zhang Ye calmly stood onstage and faced all the reporters who wore different expressions, his expression unchanging. "So how does the PM2.5 enter our bodies? How does it destroy our bodies from within? With the assistance from the experts at the Environmental Sciences Department of Peking University, we created a short video to explain."
The big screen lit up.
One after another, cartoon characters appeared onscreen.
