dumping ground
noun [ C usually singular ] uk/ˈdʌm.pɪŋ ˌɡraʊnd/ us/ˈdʌm.pɪŋ ˌɡraʊnd/
垃圾场，垃圾堆
a place where something that is not wanted is left
Most people do not want this country to become a dumping ground for toxic waste. 大多数人都不想让这个国家变成一个倾倒有毒废物的垃圾场。