achieve mastery through a comprehensive study of the subject; be thoroughly acquainted with sth; have a thorough and profound grasp of;know (a subject) from A to Z;have a thorough understanding of the inter-rela tionship between different disciplines;understand thoroughly
❍ 我们要系统地学习这门学科达到～的目的。We must systematically study the subject so as to achieve a thorough understanding of it.
融会贯通
achieve mastery through a comprehensive study of the subject; gain a thorough understanding of the subject through mastery of all relevant material
融会贯通rónɡ huì ɡuàn tōnɡ
融会：融合各种说法，领会其精神实质；贯通：指贯穿前后，全面地理解。形容把各种知识和道理融合贯穿起来，得到全面透彻的理解。achieve mastery through a comprehensive study of the subject, bring things together and understand thoroughly