今天我们要学的词是 step in. [step ɪn] To step in, 有插手，干预的意思。 Federal health officials stepped in to help to contain the outbreak after more than 250 people fell ill to a rare parasite. 一种罕见的寄生虫让250多人病倒后，美国联邦健康部门官员出面协助控制疫情。 美国汽车城市底特律申请破产保护后，The White House promised to work with city leaders but stopped short of committing to step in and bail the city out. 白宫保证跟底特律市的领导人共同努力，但是没有保证要由联邦政府出面救助底特律。 好的，今天我们学习的词是 step in, step in, step in...
