Many studies show that social support revs up the immune system, and helps prevent colds.
大量的研究已经证明社会帮扶能增强人体的免疫力，有助于预防感冒。
The traditional channel theory views marketing channel as a social system and studies the conflict problem through behavioral analysis.
传统的渠道理论将营销渠道视作一个社会体系，通过分析其行为过程来研究渠道冲突。
In the period of postmodern philosophy, the investigation of the motive force of knowledge growth has been pushed far into the complicated system of humanity and social studies.
到后现代哲学时期，知识增长动力问题则深入到复杂的人文社会系统研究中。
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