In the... Under the trend of
在…的趋势下
th the gradually perfect in the field of education history research, and the levelgradually under the big trend of three-dimensional, it is necessary to do theresearch.
在教育史学研究领域的逐步完善，层次逐渐立体化的趋势下，加强这方面的研究是十分有必要的。
Under the trend of
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