求翻译：学生面对老师和其他学生，因为害羞和怕说错的心理障碍，不愿开口表达自己的意见和看法，从而丧失本来就很稀少的课堂练习机会是什么意思？

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Students, teachers and other students were shy and afraid to say that the psychological barriers and opening to express their own opinions and views, and would have been lost to a very rare opportunity to practice classroom

Student facing teacher and other students, because is shy and feared speaks incorrectly the psychological barrier, is not willing to open the mouth to express own opinion and the view, thus loses originally on the very scarce classroom practice opportunity

Students facing the teacher and other students because of shy and afraid of saying the wrong mental disorders, are reluctant to speak to express their views and opinions, to lose their already scarce opportunities for classroom exercises

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