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s need to be conducted to…Little research has been done on…Few studies have examined…None of the findings indicate…Although much research has been devoted to… rather less attention has been paid to…While many studies have examined… far fewer have examined…However, research to date has mostly concentrated on…/ been limited to…/ been restricted to…/suffered from…/ overlooked…/ neglected to consider…/ failed to consider…/ disregarded…/ignored…Attempts to establish a link between … and… are limited/ inconclusive/ inplete/ unconvincing/ questionable/ unsatisfactory/ misguided/ flawedThus it would be of interest to learn how…It would seem, therefore, that further investigation is needed in the area of… in order to confirm…Previous work shows that the …method is useful for analyzing…. This paper uses the …method to further explore…Recent developments in the use of …technology clearly has great potential in…. In this paper, we demonstrate how…6. 表達論文和研究的意義This research will contribute to the field by…This research may provide insights into…It is hoped that this study will provide further insights into…The results of this study should be useful in…This topic was i