I believe that is a proper standard by which to judge people中的by在这里是做什么用的?能不能给我举过个例子?

that i believe he is a luck man! I beliEve that nothing is impossible ,right?. I Believe that god is fair. I believe that is a proper standard by which to judge people为什么不这么说：I believe that is a proper standard to judge people by. I once believe that a friend is a friend all the way.任务型阅读 I believe that happiness is only a step away求翻译 I know that my future is not a dream,believe yours什麽意思? I believe love can last forever,that is a big fool While it is generally believed that A …,I believe B Love is a thing that I can not believe请问这句英语表达的是什么意思? I too believe that is,I believe you will love the hypocrisy I too believe that is,I believe you will love the hypocrisy It is believe that believe that god is i believe that.中文? I believe that I want to believe 英文翻译I am silly to believe that is true love. Please believe that I love you,is not just I Believe that nothing is impossible. 汉语意思