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By the end of 2000, aiir and surface water quality in all 47 major cities should meet national standards.
中文意思:
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。


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By the end of 1962, we had met the demand for petroleum. 到1962年底,我们对石油的需求已得到满足了。
By the end of 1994 China had altogether 29.29 million retirees, whose retirement pay and retirement allowances averaged 82 percent of the average wage of workers and staff on the job. 1994年底,中国有离休、退休、退职人员2929万人,他们领取的离休、退休、退职金,人均相当于在职职工平均工资的82%。
By the end of 1998, minerals that had been discovered, confirmed and explored included: cyanite, silex,quartz,xanthoconite, others that need proving up and exploring included: mica, phosphorite, diamond, rutile, crude oil, kalium ore, etc. 至1998年底,发现、探明并已开发利用的矿种有:蓝晶石、硅石、石英砂、黄砂,有待探明和开发利用的矿种有云母、磷矿石、金刚石、金红石、石油、钾矿石等。
By the end of 1999, the economy had grown continuously since March 1991, the longest peacetime economic expansion in history. 自1991年3月至1999年底,美国经济一直保持增长,从而形成有史以来最长的、和平环境下的经济增长期。
By the end of 2000, 47 major cities meet the state's air and water environmental quality standards. 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。
By the end of 2000, aiir and surface water quality in all 47 major cities should meet national standards. 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。
By the end of 2000, air and surface water quality in 47 major cities should meet related national standards. 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。
By the end of 2000, the air and surface water of 47 major metropolises will reach the environmental quality standard specified by the nation. 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。
By the end of 2002, The Queen will have visited Australia 14 times, Canada 20 times, Jamaica 6 times and New Zealand 10 times. 统计到2002年末,女王出访澳大利亚将达到14次,加拿大20次,牙买加6次,新西兰10次。
By the end of 2002, the environmental quality of air and land-water in 47 major cities has mnet the national standard set for environmental protection. 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。
By the end of 2003 the Department of Defense will have issued smart-card ID badges to four million personnel. 在2003年年底之前,美国国防部将会发放智慧卡识别证章给400万名员工。
 
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