However,the Canadian government required that each person had to bring enough supplies to last for one year if they wanted to cross the border into Canada.

VOA: special.2009.02.11

extending the issue of the two-parent versus one-parent family is, "To what extent are these notions validated " cross-culturally?"

将双亲和单亲家庭的问题扩展了一下，“这些概念究竟在多大程度上,会因跨文化差异而有所变化“

耶鲁公开课 - 心理学导论课程节选

extending the issue of the two-parent versus one-parent family is, "To what extent are these notions validated " cross-culturally?"

将双亲和单亲家庭的问题扩展了一下，“这些概念究竟在多大程度上,会因跨文化差异而有所变化“

耶鲁公开课 - 心理学导论课程节选