health improvements in developing countries
... 某城市内的交通事故情况 Accidents in a Chinese city 发展中国家的健康状况 Health Improvements in Developing Countries 中国人口老龄化情况 The Percentage of Old People In Chinese Population ...
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health improvements in developing countries
发展中国家健康状况的改善
以上为机器翻译结果，长、整句建议使用 人工翻译 。