1．暗示原因
1）There are three reasons for this．
2）The reasons for this are as follows．
3）The reason for this is obvious．
4）The reason for this is not far to seek．
5）The reason for this is that．．．
6）We have good reason to believe that．．．
2．暗示益处
1）It has the following advantages．
2）It does us a lot of good．
3）It benefits us quite a lot．
4）It is beneficial to us．
5）It is of great benefit to us．
3．暗示害处
1）It has more disadvantages than advantages．
2）It does us much harm．
3）It is harmful to us．
4．暗示重要、需要、困难、便利、可能
1）It is important（necessary，difficult，convenient, possible）for sb．to do sth．
2）We think it necessary to do sth．
3）It plays an important role in our life．
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