As Barrie says "to be at it" essentially means "to be doing it". It is an idiom.
The slight differences are that it is a little bit less explicit and I feel it can also be a good expression to say "to be trying/attempting (to do something)".
2 of 2
Added explicitly the answer to the second part of the question (otherwise implied in this answer)
GreenAsJade
- 1.7k
- 1
- 13
- 26
Unreason
- 12.5k
- 35
- 54