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  1.It is reported that 
          2.It is estimated that 
          3.It must be stressed out that 
          4.Nothing has received more praise and abuse than something. 
          5.Something leave much to be desired. 
          6.A is to B what C is to D. 
          7.Never has something failed to fascinate us in modern society 
          8.It is no overstatement to say that 
          9.It is no exaggeration to say that 
          10.Something is a good case in point. 
          11.The ever-accelerated updating of something has brought about both chances and challenges. 
          12.It is was + 被强调部份 + that who + 原句剩余部份. 
          13.Something is indispensable to somebody in this updating society. 
          14.On the one hand, 
          15.On the other hand, 
          16.An argument occasionally these days is whether 
          17.For example, 
          18.For instance, 
          19.To illustrate, 
          20.As an illustration, 
          21.In contrast, 
          22.By contrast, 
          23.On the contrary, 
          24.Whether…depends on whether… 
          25.It is wrong to assume that 
          26.When it comes to something, 
          27.… for the reason that 
          28.… for the simple reason that 
          29.For one thing, 
          30.For another, 
             
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