heartland
/ˈhɑːtlænd/noun
(亦作heartlands)
1- the central or most important part of a country, area, or field of activity(国家或地区的)中心区域, 心脏地带; (活动的)中心。
1.1
- the centre of support for a belief or movement(信仰或运动的)策源地:
the heartland of the rebel cause
反叛活动的策源地。