04/29/2021的视频
年轻人的想法值得学习，没有那么多的排斥，多的是相帮、扶持。
To expand production, several simple greenhouses will be built this year. It is time to install plastic of greenhouse, the alumni of the Calgary Peking University Alumni Association came to help. Unfortunately, there was a strong wind that day, and the process went through twists and turns.
