of 2000. 2. 到2000年底，47个重点城市的空气和地面水达到国家规定的环境质量标准 2. Air and su***ce water quality
in all urban districts in 47 major cities should meet related national standards
by the end of 2000.
of 2000. 2. 到2000年底，47个重点城市的空气和地面水达到国家规定的环境质量标准 2. Air and su***ce water quality in all urban districts in 47 major cities should meet related national standards by the end of 2000.
