1、I think the answer's right but I'm not absolutely sure about it. 我认为这答案是正确的,但是没有绝对的把握. 2、I think I've met him before,but I wouldn't swear to it. 我好像见过他,只是不敢肯定. 下面这句也有I think.but ,但不是一样的哦! I think there can be but one outcome to this affair. 我认为这件事只可能有一种结局.