After a few weeks of healthy eating, it's easy to slip back into old, unhealthy habits.

The company conducted a thorough background investigation before hiring the new employee.

The company conducts background investigations on all potential employees.

Employers often conduct background checks on potential employees.

The company requires a background check for all new employees.

She is harking back to her childhood memories.

She harked back to her childhood memories.

I found a hidden door in the back room.

There are many talented back-rappers in the music industry.

He is a talented back-rapper.