preform
[英] [priːˈfɔːm][美] [ˌpriˈfɔrm]
v.预先形成, 预先构成
[例句]
a preformed pool.
一个预制的水池。
perform作为动词,主要分三层：
如：When will the play be performed? 那出戏什么时候上演?
perform on the flute 吹奏长笛
perform one's promise 履行承诺
perform an experiment/operation 做实验/做手术
如：The machine performs/works well. 机器运转良好.
没蜡笔的小新
