I believe that everyone has his good friend.句子中的that有什么作用?为什么要加that?

i believe that.中文? I believe that I want to believe Every word you say I unconditionally believe that to do so,right?怎么翻译 If you believe that I believe是什么意思 有首英文歌歌词好像是I really need you...every time i greet i can that believe i'm firmly believe that 还是i firmly believe that I believe every word you say是什么意思 EVERY THING WILL BE OK ,I BELIEVE just believe that i love I believe that everything you I can h______ believe that. Every Road by yourself But I believe that you can Zero , why you are so sad这话是什么意思?想知道是什么意思? I believe that I can do it Believe myself 翻译 I believe that I can forget I firmly believe that,I Love You! I believe that I will be happiness I believe that I will exceed you I believe that I will be happiness