求翻译：学生学了几年英语，到头来耳听不懂，口不能言，两极分化严重会使语言运用能力极差，导致了教学质量严重滑坡，外语教学出现了严重危机。是什么意思？

Students learn English for a few years , in the end ears do not know, I can not say , serious polarization makes poor language skills , the quality of teaching has led to a serious decline, foreign language teaching in a serious crisis.

Students learn the English language, that, in the end his ears did not understand, and cannot talk, the two extreme polarization will make the language ability is very poor, resulting in the quality of the instruction serious landslides, foreign language teaching is a serious crisis.

The student has studied several years English, the ear cannot understand in the end, the mouth cannot say, the polarization serious could cause the language to miss extremely using ability, causes the quality of teaching serious landslide, the foreign language teaching to appear the serious crisis.

Students learning English for years, ears cannot understand, cannot speak, serious polarization will make very poor language ability, resulting in the teaching quality decline seriously, there is a serious crisis in foreign language teaching.

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