The word 漏掉 (lòudiào) is a compound verb formed by combining the character 漏, meaning "to leak" or "to omit", with the resultative complement 掉, which indicates "to fall off" or "to remove". In this construction, 漏 provides the core action of unintentionally letting something pass or be missed, while 掉 adds the grammatical nuance that this action results in the thing being lost, removed, or left out. Together, they create a single lexical unit meaning "to miss out", "to omit", or "to leave out by accident", where the complement 掉 emphasizes the completed state of the omission. This is a standard pattern in Mandarin for forming verbs that express a result.