当母语结构无标记，而对应的目标语有标记时，就可能发生迁移；当母语结构有

当母语结构无标记，而对应的目标语有标记时，就可能发生迁移；当母语结构有标记，对应的目的语无标记时，迁移的可能性较小

結果 (英文) 1:

When native structure is unmarked, and the corresponding target language tags, it may migrate; when the native structure tags, corresponds to the target language when there is no tag, less likely to migrate

結果 (英文) 2:

When up structure without marking, and the corresponding target language marked, the migration may occur; when up structure marked, the corresponding target language without marking, the smaller the probability of migration

結果 (英文) 3:

When the native structure of label free, while the corresponding target marker, may occur when the mother tongue transfer; structural marker, corresponding to the target label free, less likely to transfer