旅游者旅游消费的理性化、旅游理念更新以及心理因素等是产生“旅游规避”的原因。
The rational tourism consumption, new tourism concept and psychological factors of tourists are the reasons for "tour elusion".
历史语言学的研究还可以使我们对非语言的因素，如社会文化和心理因素等在语言变化过程中所起的作用有更深的认识。
The historical study of language also enables us to determine how non-linguistic factors, such as social, cultural and psychological factors, interact over time to trigger linguistic change.
如此差异的形成与极性程度副词不同的虚化程度、不同的运用场合以及人们使用语言的心理因素等都息息相关，密不可分。
The formation of such differences are all closely linked with different degrees of grammaticalization, the different occasion of utilization as well as human's psychological factors of using language.
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