be hard at something

This time, saying it was not very hard at all.

It was only early afternoon, and they, with the rest of the community, would be hard at work.

You could tell it was really hard on them at the beginning.

Inside, three hundred or so employees are hard at work.

They were all hard at work when I passed by.

It's been so hard to keep your own head above water at times.

She is already hard at work on one short story.

In some companies, employees are hard at it first thing and stop work on time.

I don't think until the second half we were playing real hard at both ends.

I hope it is because his staff are still hard at work on such a plan.