de·com·pose /ˌdiːkəmˈpəʊz/ vt. | vi. ❶ vt. 1. 分解 decomposea compound into its elements 将化合物分解成元素 decompose a mathematical group into subgroups 把数学群分解为子群 2. 使腐烂,使腐败 ❷ vi. 1. 被分解 2. 腐烂,变腐败 The egg began to decompose after a day in the sun. 太阳晒了一天后,蛋开始腐败。