In a study of older people with sisters and brothers, psychologist Debra Gold of the Duke Center for the study of aging and human development found that about 20% said they were hostile or indifferent to ward their sisters and brothers.
出自-2014年6月听力原文
As we've seen, wage earners are expected to care for not only their children but their aging parents.
出自-2012年12月阅读原文