He bought too much on credit, and his debt increased.

He bought a new car on credit.

It is important to stock up on food before an earthquake.

Because an earthquake forecast was issued, I stocked up on food.

He bought all the new comics in bulk.

He bought all the new comics in bulk, like an adult.

He tripped over the pebble at his feet.

My destination is always a quiet seaside town.

That traveler is traveling around the world.

That traveler came from a distant country.