[DeepL Translation - needs review] If you want to become a master of English, it is essential to have a good vocabulary supported by knowledge of synonyms, syntax, context, collocations, and so on. Considering the mechanisms of memory and learning, extensive reading and listening are not suitable for improving vocabulary. The rational way to study vocabulary is to think of the entire vocabulary as a system and explore the differences between Japanese and English on your own. This book introd...
