She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.

VOA: standard.2010.02.24

To leave home and to establish a new city for themselves someplace else is not to be taken for granted.

我们不能理所当然地认为,这是为了建立一个新的城市

耶鲁公开课 - 古希腊历史简介课程节选