相关USFirstLadyMichelleO的文学知识

问题详情：   USFirstLadyMichelleObama,alongwithhermotherandtwodaughters,madetheirfirsttriptoChinafromMarch20-26.TheywenttoBeijing,Xi’anandChengdu.InaspeechatPekingUniversity,MrsObamaencouragedstuden...