The Senator concedes that his campaign is, for the first time, facing serious financial strain.

Even that level of planting "would place a serious strain on the distribution system," the trade association report said.

By the end of 1966, serious strains developed in the North's economy as a result of war conditions.

In some cases, disagreements have put serious strains on friendships.

In particular, he said, Russia is under serious strain.

The internal pressure caused by the maneuver was putting a serious strain on them all, however.

The serious strain on their marriage nearly resulted in divorce.

I didn't know much about internal politics, except as they affected trade, but 1 had heard there were serious strains between local and central government.

Singing outside the natural vocal range imposes a serious strain upon the voice.

The expansion plan would eventually inflict a serious strain on the university's financial status.