She says a contribution of more than three million Euros from Italy will be used to provide winter kits, including heating fuel to vulnerable families.

VOA: standard.2009.09.13

Some people in the population are more biologically vulnerable than others, and the Pimas appear to be one of those groups.

人群中有一些群体,在生物学上处于弱势,皮玛族就是其中之一

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But experts say they are encouraged that the virus seems to be hitting hardest among people of middle age, sparing the more vulnerable groups - the elderly and children under the age of five.

VOA: standard.2009.04.28