Others followed at about twenty-minute intervals, but the worst was over.

The other two midgets followed at twenty-minute intervals and were similarly delayed.

The pains were coming at twenty-minute intervals, and the taxi had not arrived.

He told her that twenty-minute intervals meant she had a lot of time.

Buck camped out in Lucinda's old office, interviewing key people at twenty-minute intervals.

Webb and Stevens will also leave separately; twenty-minute intervals is standard for those called in.

During the nights I've been sleeping in twenty-minute intervals.

He had called after that at twenty-minute intervals, but the message was always the same.

The first trains ran at twenty-minute intervals to Neureut.

They howled outside his door at twenty-minute intervals and were suspiciously quiet in between.