one at a time

Other singers from the Master Chorale later joined in and “laid the bricks of a cathedral one at a time,” Gershon said, “layering and combining and building and stacking and removing.”

"I’m aware of just how much training that is going to take, so we're just taking it one at a time," said Ceri.

Minus rational reform, the Legislature exempts projects one at a time, punching holes in the law — let’s call it the Swiss cheese approach to public policy.

For no additional charge, you can arrange for all of your deliveries to go to an alternative location, or just set them one at a time.

The ravens made several close sweeps, one at a time.