这个句之中的raisedeyebrows是美国固定搭配,还是语境推测?
LastyearMitsuoSetoyama,whowastheneducationminister,raisedeyebrowswhenhearguedthatliberalreformsintroducedbytheAmericanoccupationauthoritiesafterWorldWarIIhadweakenedthe"Japanesemoralityofrespectforparents".