For foreign language learners, the habits that they have in pronunciation of their mother tongue play a negative role when they learn a new language pronunciation.
对于外语学习者来说，已形成的母语发音习惯对于新语言语音的学习具有负迁移作用。
The labor shift bring up positive affect such as the showing of the aged offer and the releasing of the relation between mothers and daughters-in-law, but the negative influences play a main role.
尽管劳动力转移带来老人贡献的昭显以及婆媳矛盾缓解等积极作用，但其破坏农村家庭照料与精神慰藉功能的负面影响却是主要的。
Mass media, which play an active role in the process of law-related communication, have produced a lot of negative effects during this course.
大众传播媒介在法制传播中担当着重要角色，但同时也产生了一些负面效果，主要是：法制传播文本出现信息误差，从而误导受众；
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