4个数字2中2有多少组简介：The midterm exam is next week, are you ready? Cheng Keshu glanced at Teacher He Jun who was giving a lecture on the podium, wrote a note and handed it over to ask.
The midterm exam is next week, are you ready? Cheng Keshu glanced at Teacher He Jun who was giving a lecture on the podium, wrote a note and handed it over to ask.
