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Use "rack up" in a sentence
"One RAT gunner looks out to see a half a dozen seven-year-old boys, a cluster of TPs he was about to open fire on—he had been delighted that he had so many insurgents in one cluster, it would be an easy kill and his computer would rack up the credits, earning him and his driver a reward, compensatory time off or another insignia."
"Used to dominating short-track, they had been expecting—athletes, Big Jon, the other coaches, the South Korean government and corporate establishments, fans, everyone there—to rack up medals."
"The American Council on Exercise ranks various professions and reveals that while mail carriers rack up 19,000 steps every day, secretaries take only an average of 4,327 steps at work, restaurant employees about 10,000 steps and custodians walk nearly 13,000 steps."