青云翻译

Although I do not know, do not know why, we might give up this link.

Although I do not know when, I do not know why, we may abandon such links.

When although doesn't know, did not know perhaps any reason, we gave up this kind of relation.

Despite the fact that it was not known when and with what does not know what causes that, perhaps we have abandoned this link.

Although I do not know when, I do not know why, we may abandon such links.