to be about one's business

a catty smell

In July, South Western Railway and Network Rail ran a one-off Class 159 to Fawley, to demonstrate the line's viability. … A second 'fact-finding' trial passenger train for DfT officials is now proposed.

Through the improved management of alley crops and fallow, it should be possible to increase crop yields in ShC systems and at the same time decrease the adverse environmental impacts of these systems.