The paper is of theoretical and practical significance for foreign language teaching and learning especially for the studies of preposition acquisition of Chinese English learners.
本研究对中国学习者外语教学研究，特别是介词习得的研究具有一定的理论和实践意义。
The paper is of theoretical and practical significance for foreign language teaching and learning especially for the studies of preposition acquisition of Chinese English learners.
本研究对中国学习者外语教学研究，特别是介词习得的研究具有一定的理论和实践意义。
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