其原因可能存在于多个领域，在语言学领域，由于不同语言的迁移现象，语际错误和语内错误是错误出现的两大源泉；
The reasons lying behind may be from different sources. From the linguistic point of view, interlingual and intralingual errors are the main kinds due to the transfer between different languages.
词汇错误的原因很复杂，大体而言主要由于语际语言，语内原因以及学生平日缺乏相关练习和教师不适当的教学方法。
The causes of those errors were complex, the causes were mainly due to interlingual causes; intralingual causes; lack of practice and inaccurate teaching.
语内干扰主要表现为过度概括，忽略了规则的限制，语言规则的不完整应用，错误的假设概念。
While intralingual error is caused by overgeneralization, ignorance of rule restrictions, incomplete application of rules, false concept hypothesized, induced factors and lack of practice.
语内干扰主要表现为过度概括，忽略了规则的限制，语言规则的不完整应用，错误的假设概念。
While intralingual error is caused by overgeneralization, ignorance of rule restrictions, incomplete application of rules, false concept hypothesized, induced factors and lack of practice.
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