The waters in which Kimberella dwelt were occasionally disturbed by sandy currents, caused when sediments were whipped up by storms or meltwater discharge, and washed over the creatures.

Peaceful life is only occasionally disturbed only by commander of small German barrack in the village.

It's a harmonious working environment, occasionally disturbed by headstrong gaijin.

Those that died in captivity were often buried in what are now tidal mudflats to the south of the castle, their remains occasionally disturbed by storms.

The silence around him was occasionally disturbed by the creaking of aged timbers as they settled after the day's heat.

Black widows are nocturnal, and prefer dark, cool places that are only occasionally disturbed by humans, Dr. Sorkin said.

Although individual wells are filled in with earth to increase the cultivation area and the channels are occasionally disturbed for maintenance purposes (excavations, plant cleaning, etc.), the system as a whole is relatively stable.

However, the calm is occasionally disturbed by the arrival of late-season cold fronts.