Convincing him to donate felt like trying to get blood from a turnip.

The writer deliberately chose the phrase blood, sweat, and tears as an alternative form of the more traditional expression for relentless effort.

The clinic recorded systolic blood pressures for all patients before and after treatment.

After the board exposed the embezzlement, the fired executive threatened to have someone's blood to settle the score.

During the clinic study, patients with consistently low diastolic blood pressures were monitored for fainting episodes.

The full-bloods insisted on preserving their traditional language despite pressure to assimilate.

The half bloods gathered at dusk to defend the border.

At the annual charity ball, the blue-bloods exchanged polite nods while discussing their ancestral estates.

The blue bloods at the gala discussed the future of the estate.

In that kingdom, the half-bloods were barred from holding public office.