英语翻译这里面的got怎么理解从语义和理解上面 如何理解呢?Thanks in advance.

是have to的意思.就是不得不的意思.
老美平常说口语,经常把have to,have got to,got to,gotta替换着用,其实都是一个意思.
所以,这句句子就是说,你得相信某事儿.
举个例子,你可以这么用,
A:I don't think he has good intention.
B:Why you always look on the dark side?you gotta/got to/have to/'ve got to trust in something.