语言迁移有怎样的规律、对外语学习产生什么样的影响、在外语教学中如何利用正迁移，防止负迁移，这些都是外语教师必须面对和解决的问题。

The rule of language transfer and its impact on foreign language learning are problems for foreign language teachers to master, in order to make use of positive transfer and avoid negative transfer.

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