The causes of them include non-linguistic interference, negative intralingual and interlingual transfer.

导致失误的原因有：非语言因素干扰、语内负迁移及语际负迁移。

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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.

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；

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