"You have a very large population of people stuck inside a combat area serving as a buffer between an impending government assault and Tamil Tiger resistance.

VOA: standard.2009.04.26

Your natural defenses that might provide some kind of a buffer between a commercial message and your behavior, you have a filter, a screen that helps you interpret these message.

人天生的防御心理能够,为商业信息和人类行为之间提供缓冲,电视屏幕像一个过滤器那样,隔离了人和商业信息

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They are the nurseries of the ocean, where many species of fish and shrimp breed and serve as a buffer against coastal erosion in a region where much of the population livesin low-lying areas.

VOA: standard.2010.03.29

U.N.officials say the rebel Liberation Tigers of Tamil Eelam have ignored calls to release tens of thousands of civilians they are using as a "buffer" between them and the military in the combat zone.

VOA: standard.2009.05.11