1pri·or

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【释义】：

a．❶ 较早的，前的，先的：a 1prior discovery先前的发现．a 1prior engagement先约．❷ 更重要的(to)：have a 1prior claim to sth．对某事物有优先权．This duty is 1prior to all others．这项任务是压倒一切的．

－ad．在前，在先(to)：I called on him 1prior to my departure．我在动身前去看了他．He started 1prior to my arrival．在我未到以前他先动身了．