影响衰老的主要因素有：遗传基因，胚胎发育，教育，阶级属性，事业，生活方式，身份地位，物理和精神状况，社会活动等。
Our genetic inheritance, our quality of life in utero, education, class, career, lifestyle, status, levels of physical, mental and social activity are just some of the main influences.
教育活动是鲁迅和托尔斯泰人生与事业的重要组成部分。
Educational activities were important both in life and career of Luxun's and Tolstoy's.
教育活动是鲁迅和托尔斯泰人生与事业的重要组成部分。
Educational activities were important both in life and career of Luxun's and Tolstoy's.
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