I'm pretty sure it's in one of these boxes.我确定在其中一个箱子里

pretty sure:相当肯定

I'm pretty sure (that) he'll agree.

他会同意的，对此我有相当的把握。

I'm pretty sure I've got everything.

我肯定一切皆已带齐。

I know you think of Mona as a friend,我知道你把梦娜当朋友

think of:想象；认为

What do you think of his new job?

你对他的新工作看法如何？

I'm pretty sure she knows who dug up my sister's remains.我敢肯定她知道是谁挖出了我妹妹的尸体

dug up:掘起

Some ancient pottery was dug up in the spot.

在该地点发掘出一些古代陶器。

The potatoes are ready to be dug up.

快要收获土豆了。

But I don't think she's visiting us from beyond the grave, so...但她不可能爬出坟墓来拜访我们,所以...

beyond, above这两个词都可以作“超出”解。其区别在于:above强调其本身凌驾于一般的标准之上; 而beyond则偏重客观事物非本身力量所能达到或完成。

In future, men can travel to the moon and beyond.

未来人们能到月球或更远处去旅行。

The good they have done for me is beyond measure.

他们对我所做的好事简直无可估量。