(1)就我所知：as far as I know, to my knowledge

(2)在我看来：from my point of view, in my view/opinion

(3) 关于，就……而言：in reference to , with regard to, in respect to/of , as to, as/so far …is concerned

(4)一般来说：generally speaking

(5)概括地说：in general terms

(6)严格地说：strictly speaking

(7)更准确地说：precisely speaking,more specifically speaking

(8)可以肯定地说：It is safe to saythat…

(9)我认为：I think/believe that…

(10)人们认为：It is believed that…

(11)通常认为：It is generally accepted that…

(12)常言道：It used to be said that…

(13)众所周知：As is known to all,…;It is well known to all that…

(14)据说：It is said that…

(15)据报道：It is reported that…