Social networks were crucial to understanding how sexually transmitted diseases broke out among teenagers in 1996 in Rockdale County, Georgia, a quiet upper-middle-class suburb near Atlanta.
CNN: Obesity, STDs flow in social networks
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。