Objective: To investigate the application of a modified palatophargneous flap(MPF) operation in the correction of velopharyngeal incompetence(VPI).是什么意思_Objective: To investigate the application of a modified palatophargneous flap(MPF) operation in the correction of velopharyngeal incompetence(VPI).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句