Alfred tried to sound big, but deep down he was like a child.

VOA: special.2010.09.11

So I haven't done magic, I've given you a really fast way to solve a knapsack problem, but it's still exponential deep down in its heart, in something.

所以我并没有施魔法，我已经告诉了你,一种快速解决背包问题的方法了,但是某些方面它的核心仍然是指数增长的。

麻省理工公开课 - 计算机科学及编程导论课程节选

But of course,nobody here is screaming, from which we can conclude none of us really do believe, fundamentally,deep down,that we're going to die.

但当然现在在场没人在尖叫，那我们得出结论，我们中没有人，从根本上相信自己会死。

耶鲁公开课 - 死亡课程节选

But you certainly have to really, really desire it deep, deep down because what you're about to go through and the process you have to go through and what you have to do to get elected president.

NPR: Thompson Edges Closer to Presidential Bid

For another, it is debatable how much - deep down - he really wants Massa to be champion.

BBC: Hamilton cannot take title for granted

But, deep down, I knew that it had something to do with Raj and his vodka.

NEWYORKER: Raj, Bohemian