free period in a sentence

Examples

1. Kiefer has been showcasing his talent this year thanks to a lengthy injury-free period.
2. The stimulus-free period is called the " trace interval ".
3. Since World War II, Cambodia has enjoyed few strife-free periods.
4. The annual frost-free period lasts from 260 to 280 days.
5. The average relative humidity is 70 %, and the frost-free period is 140 days.
6. The duration of frost-free period is 180 days  the longest in North Korea.
7. These placements take place during evenings, weekends and free periods.
8. For four days, many took advantage of the toll-free period to cross the bridge.
9. Students are not obligated to stay on campus during lunch time and free periods.
10. "This is why progression-free survival, or the disease-free period, was the trial's primary endpoint.