翻译的实质是信息的传递。信息由诸多信息单元组成 ,有重心、次重心 ,非重心 ,翻译时要有取舍 ,要把握重心 ,压缩非重心 ,甚至次重心 ,保证主信息的正常传递 ;同时 ,也要对原文业已压缩的信息进行解压 ,使处在不同社会文化背景的译文读者能顺利地理解原文作者的真正含义。 The essence of translation is the transmission of information. The information is composed of many information units, with center of gravity, sub-center of gravity, and non-center of gravity. There should be trade-offs in translation, center of gravity, non-center of gravity, and even sub-center of gravity to ensure the normal transmission of the main information. The information is decompressed so that the readers of translations in different social and cultural backgrounds can successfully understand the true meaning of the original author.