求翻译：2001年，新课程在全国27个省(自治区、直辖市)的38个国家级实验区开始实验，2004年，新课程实验扩大到2576个(县、市);2005年，全国义务教育阶段起始年级全面进入新课程。是什么意思？

In 2001, new courses in 27 provinces (autonomous regions and municipalities) of the 38 national experimental zone to start the experiment, in 2004, new curriculum expanded to 2576 (counties, cities); 2005, the beginning of compulsory education year-round access to the new curriculum.

In 2001, the new course 27 provinces across the country's 38 (autonomous regions and municipalities) started a national-level experimental zone experiment, 2004, the new Curriculum Experimental extended to 2576 (county, city) during the period of compulsory education throughout the country; 2005, co

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In 2001, the new courses in the country's 27 provinces (autonomous regions and municipalities) 38 national experimental zone began to experiment, in 2004, the new curriculum experiment expands to 2,576 (County, City), 2005, starting the national compulsory year of full access to the new curriculum.

In 2001, the new course began the experiment in 38 national-level experimental areas of 27 provinces of the whole country (autonomous region, municipality directly under the Central Government), in 2004, the new course experiment was expanded to 2576 (county, city); In 2005, the initial grade of sta