Therefore, in reality, we will adopt the extended layering for those two layers and we do not need to distinguish which layer is really built on top of the other.

因此，我们实际上将对这两个层采用扩展分层机制，不需要区别哪个层实际上构建在另一层之上。

youdao

I had no idea then how far the tunnel extended, and for a long time, any light at the end of it was a hope rather than a reality.

我完全不知道那条隧道延伸多远，而很长一段时间，在隧道未端的任何光线只是希望，不是事实。

youdao

I had no idea then how far the tunnel extended, and for a long time, any light at the end of it was a hope rather than a reality.

我并不知道这条隧道有多长，在一段相当长的时间里，隧道那头的光芒只是一个渺茫的希望，而不是现实。

youdao