～ to在…之前 ～ to any discussion of the matter在讨论这事之前 ～ to sb's arrival在某人到来之前 ～ to World War II在第二次世界大战前
句型例句
用作定语
▲ ～+n.
I have a prior engagement at five.我已经先有一个在五点钟的约会。 She gave up her job as she felt her family had a prior claim to her attention.由于感到家里更需要她关心，所以她放弃了工作。
常用短语
♣ prior to 在…之前before The will was made two days prior to his death.遗嘱是在他死亡前两天立的。 I saw him prior to leaving.离开前我见到了他。 The duty to protect my sister is prior to all others.保护我的妹妹是我最重要的责任。
补充资料
［派生词］ prioritize v.使优先 ［同义词］ earlier, former, previous ［反义词］ after ［词源］拉丁语prior（在前的，使先于…的）