To get started; to begin working; to become active.
in the trenches
Working or operating in the most active and difficult parts of a job o…
set to work
To begin working.
ball of fire
A person who is especially active, ambitious, hard-working, or high-ac…
pick up the pace
To begin moving or working faster.
busy as a bee
Very active; working constantly.
come online
To enter service or become active.