on a whim 隐藏摘要 
一时兴起
stymie v. 妨碍,阻碍
on a whim 一时兴起
fumble v. 笨拙地处理,犯大错
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whim [hwim]  
whim of volrath  
she indulges his every whim  
this is no whim of the moment