几年后很多事情都会改变。

Lots of things will have changed a few years ___down ___the ___line.

他们收留了她，并且在未来，他们收养了她。

They took her in, and further ___down ___the ___line, they adopted her.

我们将来会看到事情如何发展。

We'll see how things turn out ___down ___the ___line.