奴隶主阶级 (奴隸主階級) núlì zhǔ jiējí

núlì zhǔ jiējí phrase slave-owning class
Domain: Modern Chinese 现代汉语
Notes: Quote: from 毛主席语录 Quotations from Chairman Mao Tse-Tung (Mao Zedong 1966, pp. 140-141)