实验结束后，笔者在课后时间以录音的方式随机采访了几位不同层次的学生，访

After the experiment, the author randomly interviewed several students of different levels by recording in after-class time, and the interview process was controlled within 10 minutes. And when recording, tell the students in advance that the recording is only used for academic research, will not spread to the outside world, and will not have any adverse effects on the students. The interview mainly revolved around the following questions:

After the experiment, the author interviewed several students of different levels at random in the after-school time by recording, and the interview process was controlled to less than 10 minutes. And in advance at the time of recording told students that the recording is for academic research only, will not spread to the outside world, will not have any adverse effects on students. The interview focused on the following questions:

After the experiment, the author interviewed several students at different levels randomly in the way of recording after class, and the interview process was controlled within 10 minutes. And tell students in advance that the recording is only used for academic research, will not spread to the outside world, and will not have any adverse effects on students. The interview focused on the following questions:<br>