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candidacy for [position]
后接竞选职位，如 president、mayor。
She announced her candidacy for the presidency.
她宣布参加总统竞选。
竞选
candidacies — plural of candidacy
先理解核心含义，再看它在真实句子里的用法。
竞选
the campaign of a candidate to be elected
She announced her candidacy for the presidency.
她宣布参加总统竞选。
作为候选人的状态；候选资格。
The state of being a candidate; candidateship.
She announced her candidacy for mayor last week.
她上周宣布竞选市长。
His candidacy was supported by many young voters.
他的候选资格得到了许多年轻选民的支持。
After two failed candidacies, he finally won the election.
在两次竞选失败之后，他终于赢得了选举。
后接竞选职位，如 president、mayor。
She announced her candidacy for the presidency.
她宣布参加总统竞选。
常见搭配，也可用 announce 代替 declare。
He declared his candidacy in June.
他在六月宣布了候选人资格。
表示在某人竞选期间。
During his candidacy, he promised tax cuts.
在他竞选期间，他承诺减税。
Not this
She is the best candidacy for the position.
Use this
She is the best candidate for the position.
candidacy 指“候选资格、候选人身份”，是抽象状态，不指人；指人应用 candidate。中文常把“候选人”和“候选资格”混用，这里 the best candidate 才表示“最佳候选人”。
Not this
He declared his candidacy to parliament.
Use this
He declared his candidacy for parliament.
candidacy 的固定搭配介词是 for，表示“竞选……的资格”，如 candidacy for president；不能用 to。受中文“对议会”的影响易误用 to，for parliament 才是正确搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
宣布参选
She announced her candidacy for mayor last week.
她上周宣布竞选市长。
退出竞选
He withdrew his candidacy after the scandal.
丑闻发生后他退出了竞选。
总统候选人资格
Her presidential candidacy attracted national attention.
她的总统候选人资格引起了全国的关注。
正式宣布参选
The senator declared his candidacy in June.
这位参议员在六月正式宣布参选。
支持某人的候选人资格
The union endorsed her candidacy for the board.
工会支持她竞选董事会成员。
争取候选人资格
He decided to pursue his candidacy despite the opposition.
尽管有人反对，他仍决定争取候选人资格。
Use candidacies naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
candidate（候选人）去掉t变成candidacy，就是候选资格；想象一张写着candidacy的竞选入场券。
语域：formal 常见场景：political elections、job applications、academic appointments candidacy 多用于正式场合，如选举、职位竞聘或学术评选等；日常口语中通常直接说 be a candidate。
These words all end in the written suffix -acy and have an unstressed final /əsi/, but none rhymes with candidacy /ˈkændɪdəsi/. Candidacy stresses the first syllable and continues with /ndɪdəsi/, while accuracy /ˈækjərəsi/ has /kjərəsi/ and privacy /ˈpraɪvəsi/ has /vəsi/. They are spelling lookalikes rather than true sound matches.
Dictionary facts from ECDICT, WIKTIONARY.