They climbed for another forty minutes, stopping periodically to check the paved road each time before crossing.

The characters stop periodically to thank viewers for helping them.

He stops by the garden periodically with his father to prune a tree or check on the health of a plant.

They creep up on their prey, periodically stopping and vibrating the true legs.

Stop periodically to check the work surface for high spots or depressions.

Along the route, the group stops periodically to participate in yells.

Doctors found that her heart was stopping periodically for five-second stretches.

Smith periodically stops Ruppert to question his assumptions and provide a note of skepticism.

He stops periodically between chess moves to ask for state names from the audience.

He had spent several hours just walking and stopping periodically for a cognac.