先前的時間上先發(fā)生的；較早的 Occurring before in time; earlier.
條件作用某一對象逐步將渴望的行為和先前無關(guān)的刺激因素聯(lián)系起來的行為改變過程 A process of behavior modification by which a subject comes to associate a desired behavior with a previously unrelated stimulus.
將數(shù)據(jù)恢復(fù)到先前已知或規(guī)定的狀態(tài)。 The restoration of data to a previously known or defined state.
值得報導(dǎo)的消息為報導(dǎo)有新聞價值的大事而中斷先前計劃好的節(jié)目的行為或事例 The act or an instance of interrupting previously scheduled radio or television programming in order to report a newsworthy event or story.
