She came up to me and started talking in such a familiar way that I thought I must have met her before.她走过来用非常随便的态度跟我说起话来，使我以为自己以前肯定见过她。He answered carelessly and flippantly.他回答得非常随便。She's rather too free with her favours, from what I hear.我听说，她在男女关系上非常随便。