plug away at

Or would they plug away at the tree they knew best?

As all this plays out, the A’s plug away at the Coliseum, and the few fans who do show up — many wearing their Chapman and Olson jerseys — soak up what could be the final days, or years, of the Oakland Athletics.

Their business, a boutique web design studio called Cactuslab, developed apps and websites for various clients, but they wanted a project of their own that their team could plug away at when there wasn’t much else to do.

Structural biologists continue to plug away at the remaining unsolved proteins in the coronavirus genome.

While the problem is broadly acknowledged, many people think we just need to plug away at our standard methods of investigating the brain, and we’ll eventually crack it.