So, " therein" . " Therein" means: In what?

所以，" therein" 就是，在什么里面、其中。

And therein lies some significant challenges for both.

而两者都面临着一些重大挑战。

You have learned how to create new types using classes now therein a tiny problem in this implementation.

您已经解如何使用类创建新类型，现在在这个实现中是一个小问题。

The righteous shall inherit the land, And dwell therein forever.

正直人继承土地饶富，永居于此。

But we do have some prototypes, and therein lies some hope.

但是们有一些试验模型，还保有一点希望。

When he saw who sat therein he seemed to be disappointed.

当他看见车里人是谁以后，显得很失望。

Go about living my life. See, therein lies your eternal struggle.

还享受生活呢。看，这就是你永生奋斗。

Sensory experience is rich, and everything therein could potentially predict an outcome.

感官体验是十分丰富，其中一切都有可能是结果预测。

Both truth and beauty on my love depends; So dost thou too, and therein dignified.

真和美都仰仗爱而生存，你也一样，缺它就无法称作花魁。

Its condition is recorded therein as that of heathy, furzy, briary wilderness—" Bruaria."

根据那部历史文献，这是一片长满杜鹃、荆棘与石楠野地，地名叫“布鲁阿里亚”。

But therein started a foundational theme in my life, the quest to blend reality and imagination.

但也从此铺就人生底色：追求现实与想象融合。

Copilot combines a large language model with the 365 suite and the user data contained therein.

Copilot 将一个大型语言模型与365套件以及其中包含用户数据结合在一起。

It says attached photos are being circulated in an attempt to identify the individuals, highlighted therein.

备忘录里有关联照片流传, 试图识别个人, 其中有部分做特别标记。

" The tomb and all its contents were photographed" , so why should I use " therein" ?

" 墓穴和里面所有东西都被拍摄" ，所以为什么要用" therein" 呢?

Treble, tenor, and bass notes were to be found therein.

高音，中音，低音都能从中找到。

There go the ships: there is that leviathan, whom thou hast made to play therein.

那里有船行走，有你所造鳄鱼游泳在其中。

Therein lies the irony that ultimately kills us. I need you to make contact with this age.

而这会将们杀死。需要你来与这个世界接触。

But no hesitation was apparent therein.

但其中没有明显犹豫。

Beyond the light quiver and flap of the flames nothing moved or was audible therein.

除微弱颤动和火焰扑腾之外，那里没有任何动静，也听不见任何声音。

" ... therein lies the problem for the union, 60% of whose membership is young women" .

" … 其中问题在于，60%工会成员都是年轻女性。