on a whim英 [ɔn ə hwɪm] 美 [ɑn e hwɪm]
                                            
释义一时兴起;一时冲动;随心所欲;随随便便
 
                                                                                                
                                                                                                                            双语例句
                            - She bought that dress on a whim.
她一时心血来潮就买了那件连衣裙。 - On impulse, I picked up the phone and rang my sister in Australia.
我一时心血来潮,拿起话筒就给在澳大利亚的妹妹打了个电话。 
                                                                            权威例句
                            On a whimOn a whimOn a WhimGenetics on a WHIM.Genetics on a WHIMGenetics on a WHIMGenetics on a WHIMReleased on a WHIMReleased on a WHIM"Charitable Trusts and Advancement of Religion: On a Whim and a Prayer?"What is news? The answer is not blowing on a whim.The most comfortable underwear I own come from a subscription I started on a whim 2 years agoA wholistic model for teaching computer and information science: learning on a WhIM