The 14-inch wide openings for the air inlets were reduced by means of a winchable curtain to provide an air velocity of 700 to 900 feet per minute.

Hilma donned her oldest dress, carried pick and shovel to a flower-blown knoll above the creek and there chose a site for the grave. […] Soon the sleazy dress clung to her back with a sweat of toil, and its stretched web undulated to the smooth play of muscles from shoulder to midback.

You're falling behind with the rent.

The thread increments the semaphore to prevent other threads from entering the critical section at the same time.