to keep working steadily on something
непрерывно работать над чем-то (nepreryvno rabotat' nad chem-to)
"Keep plugging away at the draft and it will improve."
"Продолжайте работать над черновиком, и это улучшится." (Prodolzhayte rabotat' nad chernovikom, i eto uluchshitsya.)
to pay for something, especially something expensive
a significant improvement or shift
to speak at length in an excited or annoyed way
to stop something; to end support for a project or activity
to work hard and continuously
to gradually become more capable or skilled at something
