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so that
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APASmart Define. (1970). he was so keyed up that he found it difficult to sleep thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/he_was_so_keyed_up_that_he_found_it_difficult_to_sleep/thesaurus/broader
ChicagoSmart Define. 1970. "he was so keyed up that he found it difficult to sleep thesaurus" https://smartdefine.org/he_was_so_keyed_up_that_he_found_it_difficult_to_sleep/thesaurus/broader (accessed September 30, 2026).
HarvardSmart Define 1970, he was so keyed up that he found it difficult to sleep thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/he_was_so_keyed_up_that_he_found_it_difficult_to_sleep/thesaurus/broader>.
MLASmart Define. "he was so keyed up that he found it difficult to sleep thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/he_was_so_keyed_up_that_he_found_it_difficult_to_sleep/thesaurus/broader>