Johnson, J. and E.Newport.Critical period effects on universal properties of language: the status of subjacency in the acquisition of a second language[J].Cognition 1991, (39).是什么意思_Johnson, J. and E.Newport.Critical period effects on universal properties of language: the status of subjacency in the acquisition of a second language[J].Cognition 1991, (39).在线翻译_英语_读音_用法_例句