单词	pertinacity
释义	pertinaciousper‧ti‧na‧cious /ˌpɜːtəˈneɪʃəs◂ $ ˌpɜːr-/ adjective formal Word Origin WORD ORIGINpertinacious Origin: 1600-1700 Latin pertinax, from tenax; ➔ TENACIOUS Examples EXAMPLES FROM THE CORPUS But pupils of the more pertinacious sort profited greatly from his teaching and his company. continuing to believe something or to do something in a very determined way SYN  tenacious—pertinaciously adverb—pertinacity /-ˈnæsəti/ noun [uncountable]
随便看	multiracial multiskilling multi-storey multitask multitasker multitasking multitude multitudinous multi-user multiverse multivitamin mum Mumbai mumble mumbo-jumbo mummer mummification mummify mumming mummy mummy's boy mumps mum-to-be munch Munch, Edvard

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