How is “keep at” used?

In Batman: The Dark Knight Returns, Part 2 (2013), one line is: “Keep at it! Do a channel sweep.”

Which movie is “keep at” from?

The clip at the top of this page is from Batman: The Dark Knight Returns, Part 2 (2013).

Phrasal verb

to continue working at sth; to make sb continue working at sth

Se oye en 1,062 películas

1
keep at sth
to continue working at sth
Come on, keep at it, you've nearly finished!
2
keep sb at sth
to make sb continue working at sth
He kept us at it all day.

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

Keep at it! Do a channel sweep.

En 8 películas · n.º 1