“蜉蝣”“阳炎”“蜻蛉”等是日语“かげろふ”的常见借字词。这3个借字词是汉字词,亦常见于中国古代典籍中。通过考证分析,可以发现这些汉字词在中日典籍中的使用存在相通之处,与词语基本义和佛教有着不可忽视的联系。具体到《蜻蛉日记》中“かげろふ”的释义,要考虑语义和具体的语境,译成汉语时也要结合词语在汉语中的意义和使用进行翻译。 “蜉 蝣 ” “炎 ” “蛉 蛉 ” is a common Japanese word for “か げ ろ ふ ”. The three borrowed words are Chinese words, which are also common in ancient Chinese books. Through the textual research, we can find that there are similarities between the usage of these Chinese words in Chinese and Japanese books, and the basic meaning of words and Buddhism can not be neglected. Specific to the “dragonfly diary” in the “か げ ろ ふ ” interpretation, to consider the semantic and specific context, when translated into Chinese also combined with the meaning and use of words in the Chinese translation.