Another study of high school social networks found less bullying and aggression the higher the density of mixed-sex friendships within a given adolescent network.
另一项关于高中社交网络的研究发现，在特定的青少年网络中，异性友谊密度越高，欺凌和攻击行为就越少。
How do you combine the splendours of the suburban backyard with the social intensity of urban density?
怎样将郊区后院的辉煌与都市密度造成的群居强度结合呢？
MRI (magnetic resonance imaging) scans of the men's brains revealed a strong link between those who valued social bonds with others and the density of grey matter in the two brain regions.
对人脑进行的MRI(核磁共振成像)扫描发现，重视与他人社会联系的人，与两个大脑区域的灰色质密度之间存在密切的相关性。
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