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BNC: 22670 COCA: 22795

unproven

Word family
un·pro·ven /ʌnˈpruːvən, -ˈprəʊ- $ -ˈpruː-/ adjectiveadj  
not proved or tested 未经证实的;未经检验的
 unproven allegations
未经证实的指控
 unproven medical treatments
未经试验的治疗方法
Examples from the Corpus
un·pro·ven adjectiveadj
Chinese
Syllable
Corpus
BNC: 22670 COCA: 22795
BNC: 22670 COCA: 22795
BNC: 22670 COCA: 22795
unproven
Not effective or useful and not working correctly: useless, ineffective, inefficient...
Not definite or based on fact: apparently, supposed, alleged...

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