1、建议性 ： 对所讨论的问题提出建议性的意见, 包括建议和具体的解决问题的方法
[1]. While it cannot be solved immediately, still there are ways. The most popular is .... Another method is ... Still another one is .....
[2]. Awareness/Recognition of the problem is the first step toward the situation.
2、方向性的结尾方式：其与建议性的唯一差别就是对问题解决提出总的, 大体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 ........
3、意义性的结尾方式：文章结尾的时候,从更高的更新的角度指出所讨论的问题的重要性以及其深远的意义!
[1]. Following these suggestions may not guarantee the success, but the pay off might be worth the effort . It will not only benefit··· but also benefit .....
[2]. In any case, whether it is posotive or negative, one thing is certain that it will undoubtedly ..
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