求翻译：英语课堂的教学语言主要是英语。教学语言的质量被列为衡量教师业务水平和教学能力的重要标准之一。[5]教师的语言能力低下,导致了英语课堂的沉闷。大量母语的出现,反复的讲解,使学生认为英语学习是理论学习而不是技能培养。难懂的语法术语,增加学习压力,导致学生厌学,最终失去兴趣。是什么意思？

English classroom teaching language is English. The quality of teaching language as an important criterion to measure teachers' professional knowledge and teaching competence. [5], the language proficiency of teachers is low, resulting in a dull English class. The emergence of a large number of nati