Because only then的意思|示意

But even if one day we manage to explain time and space in terms of something else, that only pushes the question to another level, because you then have to explain [the something else].

但是即使有一天我们希望通过某种东西去解释时间或者空间，那只不过是把问题推向了另一个层次，因为你还需要解释你解释时间用的这些东西是什么。

You can only do that if you own the channel, and even then you don't make much from it, because a toll has to be ignorable to work.

你没法销售内容本身，除非你自己建立了渠道，而即使这样你也赚不了多少，因为收费是一个很大的障碍。

Suppose I m plain 8 (and you must admit that this is more likely). Then I would always fear that you were going on writing to me only because you were lonely and had no one else.

设想本人相貌平平(你得承认，这种可能性更大)，那我就会始终担心，你和我保持通信仅仅是出于孤独寂寞，无人交谈。

Because when you know what your problems are, only then can you be ready to face and resolve it.

因为只有当你了解你的麻烦时，你才能做好准备面对和解决它。

The reason why I choose Q is because then I lose both this force and that force, and I only have to deal with this one and that one.

我选择Q点的原因是,如果我撤去这两个力，我就只用考虑这个力,和那个力了。

You must hold it as something more important than your life, then only we will let you teach, because only then we can load subjectivity into the yoga that is offered.

只有你把它看得比生命还重要，我们才让你去教授，因为只有那时，我们才能在瑜伽的教学中注入主观性。