break something down 1. demolish a door or other barrier 拆毁; 毁坏（门或其他障碍）： they had to get the police to break the door down 他们不得不叫警察来把门砸开了 figurative 〈喻〉class barriers can be broken down by educational reform. 通过教育改革可以消除阶级障碍。 2. separate something into a number of parts 分解： each tutorial is broken down into more manageable units. 每本辅导材料都被分成了更易处理的单元。 ■ analyse information 分析信息： bar graphs show how the information can be broken down. 条形图说明了如何分析信息。 ■ convert a substance into simpler compounds by chemical action 分解（利用化学作用将物质转化为较简单的化合物）： almost every natural substance can be broken down by bacteria. 几乎每一种天然物质都可被细菌分解。 |