方向性的結(jié)尾方式：其與建議性的差別就是對(duì)問(wèn)題解決提出總的，大體的方向或者指明前景
[1]Many solutions are being offered here, all of them make some sense, but none is adequate enough. The problem should be recognized in a wide way .
[2]There is no quick method to the issue of …, but … might be helpful/benefical.
[3]The great challenge today is … There is much difficulty, but …
[1]Many solutions are being offered here, all of them make some sense, but none is adequate enough. The problem should be recognized in a wide way .
[2]There is no quick method to the issue of …, but … might be helpful/benefical.
[3]The great challenge today is … There is much difficulty, but …