neg·ateAWBrE/nɪˈɡeɪt/NAmE/nɪˈɡeɪt/verbpresent simple - I / you / we / theynegateBrE/nɪˈɡeɪt/NAmE/nɪˈɡeɪt/present simple - he / she / itnegatesBrE/nɪˈɡeɪts/NAmE/nɪˈɡeɪts/past simplenegatedBrE/nɪˈɡeɪtɪd/NAmE/nɪˈɡeɪtɪd/past participlenegatedBrE/nɪˈɡeɪtɪd/NAmE/nɪˈɡeɪtɪd/ -ing formnegatingBrE/nɪˈɡeɪtɪŋ/NAmE/nɪˈɡeɪtɪŋ/ (formal) ~sthtostopsthfromhavinganyeffect取消;使无效SYNnullify◆Alcoholnegatestheeffectsofthedrug. 酒精能使这种药物失效。~sthtostatethatsthdoesnotexist否定;否认