An injury ended Zhang Zhiqiangs dream of becoming a professional basketball player, so he became a physical education teacher. To impress the new young math teacher, he volunteers to teach the problem class of the school in math.
2014
1986
1987
1998
1957
1958
1988
2005
2015
1935
2012
1969
2019
1944
2020
1999
2023
2002
