3.Whenever possible "Freephone" or similar facilities should be provided so that Respondents can check the Researcher's bona fides without cost to themselves.
无论何时,尽可能提供"免费"类似设备,让被访应免费查到研究人员真实性.
4.He has been busy with his SMs during his interview, which in the interviewer's aspect could connotate the sickness of the poser and the improbability of intercoursing with bona fides.