Classify system的用法和樣例：
例句
- It must naturally have led to a high degree of unanimity concerning an ideal system of classification of plants.
它必定很自然地導致一個高度統一的，理想的植物分類系統。 - Category describes this learning object in relation to a particular classification system.
範疇描述該學習對象和特定分類系統的關係。
