zài / xué shù dá biàn / zhōng / yán jiū zhě / bì xū / zhèng miàn / huí yìng / píng shěn / tí chū / de / bó nàn在学术答辩中,研究者必须正面回应评审提出的驳难。In an academic defense, researchers must respond directly to the challenges raised by the reviewers.