随着研究深入,二语习得呈现出跨学科的特点。在二语习得过程中,学习者的“回避”是一常见现象。由于二语习得涉及心理、认知、文化等诸多因素,使得“回避”现象的相关研究变得极为复杂,显得不够系统和全面,其复杂性表现归纳如下:理论复杂、习得过程复杂、“回避”的界定复杂以及“回避”现象的分类复杂。 With the deepening of research, second language acquisition shows the characteristics of interdisciplinarity. Learners’ “avoidance” is a common phenomenon in second language acquisition. As second language acquisition involves many factors such as psychology, cognition and culture, the researches on “avoidance ” phenomenon become extremely complicated, which are not systematic enough and comprehensive. Their complexity is summarized as follows: complex theory, acquisition process Complicated, “avoidance” complex definition and “avoidance” phenomenon complex classification.