ibelieve後面加什麼介詞

可以不加，也可以加in，例如：

1、Why should I believe you? Everything you ever told me was a lie.我為何要置信你你所説的一切都是謊言。

2、I believe competent authorities will handle the case involving the21 Indians youmentioned according to law.你提到的21名印度人在深圳的問題，相信有關部門會依法處理。

3、I believe we will create the splendor for Xineng day by day.我相信，以後的每一天都能創造錫能的輝煌！