¡¡¡¡The change in¡­mainly results from¡­
¡¡¡¡The increase in¡­is due to the fact that¡­
¡¡¡¡Many people would claim that¡­
¡¡¡¡One of the reasons given for is that¡­
¡¡¡¡There are a variety of reasons for this dramatic growth in¡­ First¡­ Second¡­ Finally¡­
¡¡¡¡Why are (is/do/did)¡­? For one thing¡­ For another¡­
¡¡¡¡History is filled with the examples of¡­
¡¡¡¡As is shown in the table released by the government, it can be learned that¡­
¡¡¡¡There is (no) good evidence to¡­
¡¡¡¡We must admit the undeniable fact that¡­
¡¡¡¡No one can deny the fact that¡­
¡¡¡¡Experience (Evidence) suggests that¡­
¡¡¡¡The same is true of¡­
¡¡¡¡½áβ¶ÎµÄ³£ÓúËÐľäÐÍ
¡¡¡¡It is high time that we placed great emphasis on the improvement of¡­
¡¡¡¡It is high time that we put an end to the unhealthy situation (tendency/phenomenon) of¡­
¡¡¡¡There is no easy solution to the problem of¡­, but¡­ might be useful.
¡¡¡¡Unless there is a common realization of¡­, it is very likely that¡­
¡¡¡¡It is essential that effective measures should be taken to prevent the situation.
¡¡¡¡It is suggested that great efforts should be made to control the growth of¡­
¡¡¡¡It is hoped that great efforts should be focused on finding (developing/improving)¡­
¡¡¡¡Anyway, more publicity should be given to the potential effects of¡­
¡¡¡¡To control the tendency is not an easy job, and it involves a different state of attitude towards¡­
¡¡¡¡To put all into a nutshell, I¡­