Johnson presided over a long Senate ethics committee investigation.约翰逊负责了一次历时很长的参议院道德规范委员会调查。The ethics committee may take a decision to admonish him or to censure him.道德委员会也许会决定对他进行训诫或是严厉批评。The study was approved by the medical ethics committee.这项研究获得医学道德委员会通过。