Once-or-twice synonyms

Then they are turned once or twice in their dry state by men with shovels.

Quantities can be learned from experience, and from watching individual cases; frequency varies within very wide limits, from reptiles which at most may feed once a week and fast for long periods, to the smaller insectivorous birds which require to be fed every two or three hours, and which in the winter dark of northern latitudes must be lighted up once or twice in the night to have the opportunity of feeding.

The nation had followed Theodoric. It is only once or twice after his expedition that we hear of Goths, or even of Gothic leaders, in the eastern provinces.