The paper also discussed limitations and future research directions.
并讨论了本文的一些缺陷及今后的研究方向。
Finally, we illustrate the limitations of paper and future research prospects.
最后说明了论文的局限以及未来的研究展望。
At last, the limitations and the future research of this study are pointed out.
最后，本文指出了本研究存在的不足和今后的研究方向。
The limitations of the current study and implications for future research are also discussed.
论文最后也指出了本研究存在的局限，并提出对以后研究的建议。
The limitations of the current study and implications for future research are also discussed.
论文最后也指出了本研究存在的局限，并提出对以后研究的建议。
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