填空题 There are three key aspects of transactional communication：（），multiple levels of meaning，and the importanceof context and culture.

填空题 The World Health Organization defines health as“a state of complete physical，mental and（）and not merely the absence of disease or infirmity”.

填空题 Social Capital can be defined as the （）of interpersonal ties among people within a community，and the resources that these network members make available to individuals.