In his two-hour waiting period at the clinic, Cardona had studied the patients there.

Binging is defined as having at least five drinks in a two-hour period, four for women.

Two of us will stand watch for two-hour periods.

I specified delivery during a two-hour period on Thursday morning.

Others ask their agents to hold an "open house" where all prospective buyers are invited to view in a two-hour period.

That call was responsible for Cranston's arrival, just at the finish of the two-hour period.

The transfers were good for another ride within a two-hour period.

The safe level over a two-hour period is 150.

The researchers recorded the extent of pain and irritation over a two-hour period.

It will be the beginning of the two-hour period of the Snake.