这奥秘更难理解了.用英语怎么说？

这奥秘更难理解了.

The mystery deepens , ie becomes harder to understand.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

mystery

n. 秘密，谜，神秘，神秘的事物，推理小说，推理剧，常作 mysteries 秘技，秘诀；

例句
...a writer who becomes involved in a real murder mystery through his acquaintance with a police officer...
因为认识一位警官而参与到一件真实谋杀悬案调查的作家

deepens

v. 变深，加深( deepen的第三人称单数 )，加浓；

例句
Economy deepens the coact that wants economist and mathematician theoretically.
经济理论的深化要经济学家与数学家的共同合作.

becomes

v. 变为，成为( become的第三人称单数 )，适合，使（人）显得漂亮，使好看；

例句
...a writer who becomes involved in a real murder mystery through his acquaintance with a police officer...
因为认识一位警官而参与到一件真实谋杀悬案调查的作家

harder

adj. 更困难的，更坚固的，更硬的；adv. 更努力地；

例句
I was the first to ask him awkward questions but there'll be harder ones to come...
我是第一个向他提出尴尬问题的人，不过还会有人问更难回答的问题。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

understand

vt.& vi. 懂，理解；vt. 了解，默认，听说，领会；

例句
Another accusation levelled at the Minister is that he does not understand ordinary people...
另一个矛头则直指部长不懂得体恤百姓。