举一反三 = to raise one and infer three / to deduce many things from one case (idiom) 融会贯通 = to master the subject via a comprehensive study of surrounding areas http://www.mdbg.net/chindict/chindict.php?page=worddict&wdrst=0&wdqb=%E8%9E%8D%E4%BC%9A%E8%B4%AF%E9%80%9A

举一反三 is actually a Confucian saying. “When I teach you how to identify an object with four sides, I take one corner for an instance and you should analogize the other three.” So, 举一反三 means to draw inferences about other cases from one instance, particularly when learning new things.