He was the first person to break the sound barrier.

We don't seem about to break the sound barrier at any given moment.

She was the first British woman to break the sound barrier.

Everyone should have an F-16 that can break the sound barrier.

He broke the 29-minutes barrier for the first time in 1976.

If one broke the barrier but not the other, he or she would get $10,000.

Second woman to break the 200-point barrier in international competition.

Long continued to break barriers after his baseball career was over.

In addition, the team has broken the 50,000 barrier three times.

This is the first time the population has broken the 1,000,000 barrier since 1996.