“社会主义初级阶段”怎么翻译？

“社会主义初级阶段”英文是《The Primary Stage of Socialism》

政治里很经典的话：）~
社会主义初级阶段理论《The Theory On the Primary Stage of Socialism》

中国现在处于并长期处于社会主义初级阶段“China i s Currently in the Primary Stage of Socialism and Will Remain in This Stage for a Long Time to Come."