Though there have been sporadic efforts to merge the city's three systems, they stand as fiercely independent entities.

In a week of sporadic effort she had not succeeded.

For now, they are making only sporadic efforts to raise public awareness.

But the current extolling of the ordinary far exceeds those earlier, sporadic efforts.

Despite sporadic efforts to improve relations, the two nations have remained at odds ever since.

The mines declined after 1874, though underground mining continued into the 1920s, with sporadic efforts thereafter.

Nevertheless, archaeology did become a more ordered field, in contrast to the individual and sporadic efforts that came before.

Around 2000 the members began work on a new project and after four years of sporadic effort released a new album, Today.

Whites invaded Indian lands and sporadic efforts by soldiers to force them off the reservation were ineffective.

There have been sporadic efforts to end the subsidies.