prerequisite是什么意思
prerequisite[英][ˌpri:ˈrekwəzɪt][美][priˈrɛkwɪzɪt] n.先决条件，前提，必要条件; adj.必须先具备的，必要的; 先决条件的; 复数：prerequisites 例句: 1. The third prerequisite is imagination. 第三个先决条件是想象力。 2. The role of outside observers in peace dealings had long been a prerequisite for...