求翻译：老师们仅凭过去的印象和经验，以及学生的成绩，上课的表现随便得出结论，于是给学生贴上“聪明”“迟钝”“捣蛋鬼”“小帮手”的标签。是什么意思？

Teachers past impression and experience alone, as well as student achievement, school performance casually concluded, so students labeled "smart" and "slow" and "devils" Assistant "tab.

Teachers are only based on our past impressions and experiences, as well as the academic performance of students attending classes, just come to the conclusion of the performance, and thus to the students on the "smart" and "retarded" and "naughty little helper," " " the label.

Teachers only depended on the past the impression and the experience, as well as student's result, attended class the performance drew the conclusion casually, therefore pasted on “intelligently” “slow” “the trouble maker” to the student “the young helper” label.

Teachers were mere impressions and experiences of the past, as well as student achievement, class just came to the conclusion that students labeled "smart", "slow" and "mischief" and "little helper" label.

正在翻译，请等待...