高分悬赏！！英语高手进~！！！急急急

用于文章主题句 1.不用说¸… It goes without saying that子句 = (It is) needless to say (that)子句 = It is obvious that子句 = Obviously, S. + V. 例∶不用说早睡早起是值得的。 It goes without saying that it pays to keep early hours. 2.…是不可能的; 无法… There is n