The gas employed was such that its potency would cease within three days.

However, his membership ceased within seven hours of him joining the party.

Noise ceased to be, within the shadow of the roof.

But this practice ceased within 1-2 years because of competition.

The system ceased operation within years following its opening.

Attacks normally spontaneously cease within the first 15 weeks of life.

"All movement by the victim would cease within three or four minutes."

I believe all support for both production and export should cease within a few years.

All bad blood finally ceased within the rest of the group.