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Use "infatigable" in a sentence
"One, I think the people in the United States are finally figuring out what the people in the state of New York figured out a long time ago when she became senator, which is that once elected to office or given a job to do, she's infatigable, she works really hard for her constituency."
"Por su infatigable trabajo por los intereses de Bélgica, él fue nombrado en 1919 un Chevalier de la "Orden de la Corona" de ese país."
"E. J. Christensen, I thank you for your infatigable ability to argue with me about any subject, which has kept my “verbal judo” skills competitive, at least."