Careful, close reading performed to understand meaning and structure; commonly used in language study and research (often used as 'to do close reading').
語彙を増やすために新聞記事を精読している。
I carefully read newspaper articles to increase my vocabulary.
テスト前には教科書を精読して重要な部分に線を引いた。
Before the test, I closely read the textbook and underlined important parts.
精読することで作者の意図がよく分かる。
By close reading, you can better understand the author's intention.