中文摘要：

文章考察了汉——藏对应和汉——彝对应的核心词汇有阶分布，确定高阶词汇比例大于低阶词汇比例，从而进一步说明汉语和藏语同源以及汉语和彝语同源。也就是说，汉语和藏缅语的同源关系可以得到进一步的确认。

英文摘要：

This paper applies the rank analysis to the core Sino-Tibetan correspondences and the core Sino-Yi correspondences. It is found that the high-ranking words are more than the low- ranking words in both correspondences. This confirms the genetic relationship between Chinese and Tibetan and that between Chinese and Yi. In other words, the genetic relatedness between Chinese and Tibeto-Burman languages can be confirmed.