Focus can be further upgraded over the course of the game.

It also agreed to spend $764 million to upgrade the phone system over the next two years.

The engine was upgraded over the course of its production.

It is still in service today but has been upgraded several times over its lifetime.

This area has been upgraded greatly over the past two years.

The package would help upgrade their infrastructure over the next ten years.

The auditorium has upgraded sound and light equipment over the past few years.

The stations on the route have been upgraded over several years.

It is to be upgraded over time with more powerful versions.

I will upgrade at last to a PS3 over this and a few others.