in the fifties短语⁴¹⁰⁶⁴ 基本例句 🌏在五十年代 The progressive freeing of trade in the fifties and sixties had removed most of the protection that domestic industry had enjoyed during the era of national capitalist development. 而五六十年代自由贸易的不断扩张使得国内工业失去了在民族资本主义发展时期曾经享有的绝大多数保护措施。 yeeyan