A software for learning Japanese or English by checking Japanese-English sentences. From our view, the best way is to learn how to use the most commonly used words by reading some examples that are used in normal life. The main features include:1) Provide bilingual sentence pairs and monolingual sentences. 2) Provide more than 15000 most commonly used word entries. 3) Can order the words by frequency. 4) Provide more than 50,000 bilingual sentence pairs. 5) Provide more than 300,000 monolingual sentences. 6) Support multiple search input methods. 7) The history function stores the 20 latest searched input of your current session for your later study.