turnon的意思是打开;接通?的供应。
例句：PHRASALVERB打开（设备）；接通（?的供应）。Whenyouturnonapieceofequipmentorasupplyofsomething,youcauseheat,sound,orwatertobeproducedbyadjustingthecontrols.Iwanttoturnonthetelevision...我想开电视。
PHRASALVERB诱惑；激发?的性欲。Ifsomeoneorsomethingturnsyouon,theyattractyouandmakeyoufeelsexuallyexcited.Thebodythatturnsmenondoesn'thavetobeperfect.并不是非得完美无瑕的身体才能激发男人的性欲。
PHRASALVERB突然表现得;突然装出：Ifyousaythatsomeoneturnsonaparticularwayofbehaving,youmeanthattheysuddenlystartbehavinginthatway,andyouareoftenalsosuggestingthatthisisinsincere.Hecouldalsoturnonthestylewhentheoccasiondemanded.如果场合需要，他也能瞬间就表现得风度翩翩。
PHRASALVERB对?进行身体（或语言)攻击;斥责：Ifsomeoneturnsonyou,theyattackyouorspeakangrilytoyou.Demonstratorsturnedonpolice,overturningvehiclesandsettingfiretothem...示威者攻击警察，推翻车辆并将其纵火焚烧。
PHRASALVERB依靠;取决于：Ifsomethingturnsonaparticularthing,itssuccessortruthdependsonthatthing.TheplotturnsonwhetherIlsawillchooseherloverorherhusband.故事情节取决于伊尔莎会选择情人还是丈夫。