First they're vertical, then horizontal; they just oscillate back and forth.

The swinging door oscillated back and forth several times after he shoved his way through it.

These fronts oscillate back and forth across Korea during the summer months.

It oscillated slowly back and forth as Jamie shook his head.

It seems that the whole apparatus would oscillate back and forth.

Once put into motion the block will oscillate back and forth around the equilibrium position.

The resulting superposition ends up oscillating back and forth between two different states.

Within this element riders oscillate back and forth before coming to a stop in the middle.

It oscillated slowly back and forth asJami shook his head.

AC current oscillates back and forth sixty times per second.