万能三码方法研究简介：As the physical education teacher gave an order to Class 1 with a stopwatch, the timing started, and the boys and girls in Class 1 all started running. Of course, since it was one thousand meters long, they were jogging evenly.
As the physical education teacher gave an order to Class 1 with a stopwatch, the timing started, and the boys and girls in Class 1 all started running. Of course, since it was one thousand meters long, they were jogging evenly.
