How do you keep good eyesight(视力)? Wantang Primary School in Yunnan has good ways. There are 536 students in the school. None of the students are short-sighted. Students there have a good schedule. It keeps them healthy.
They play sports for three hours( 小时)every day.
They get 10.5 hours of sleep from every day.
They can't take phones to school.
They have a healthy diet(饮食).They eat more vegetables and fruits.
There are green plants all around the school.