In September 1971, it was decided to upgrade the system with better technology.

During the championship season, you may upgrade your car with certain parts.

The company's vision is to upgrade video security with 21st-century technology used by the Internet industry.

The engines are upgraded too, with more power and better economy.

The road had probably been upgraded with American money and contracts.

Facilities at the school have recently been upgraded with a £4.5 million development of the buildings.

Now the school has been upgraded to middle level with 8 rooms and 300 students on its roll.

Martin will have to upgrade his credit with the dealer today.

There was a discussion about upgrading our relations with Israel.

When the entire phone system was eventually upgraded with newer technology, I continued to place calls through them.