亲身访问 meaning in English

personal inquiry

Professor tam sees the internet as a cost - effective channel for both research and marketing . since interviewees are able to fill in and submit the questionnaires online , there is cost and time savings on manpower to arrange interviewers to conduct phone or personal interviews
由于被访者可直接于网上填妥及递交问卷，毋需如传统的市场调查方法要安排调查员透过电话或亲身访问，亦避免被访者要寄回问卷的麻烦。