He was proposed as a candidate for the headmaster.

他被荐举为校长候选人。

《新英汉大辞典》

He stood as a candidate in the local elections.

他作为候选人参加地方选举。

《牛津词典》

She stood unsuccessfully as a candidate in the local elections.

她参加了地方选举，但未能当选。

《牛津词典》

Always chosen as a candidate when sure to be defeated.

VOA: special.2009.01.22

It is--at least, it puts itself out there as a candidate to be an alternative term that one might use if one got tired of saying "irony" or "paradox."

如果“讽刺“，“悖论“一类的词,用的太多,可以用“朦胧“来替换“

耶鲁公开课 - 文学理论导论课程节选

I think this is President Obama's understanding, also at least as far as I understand from the speeches that he gave when he was a candidate is that we understand the importance of maintaining the integrity of faith communities, they could hire who they want to hire using the wrong resources.

我认为这是总统奥巴马的理解，也至少是我目前,从他作为候选人时所做的演讲中理解的,是我们理解,保持信仰团体完整的重要性，他们可以雇佣任何想要雇佣的人,利用错误的资源。

普林斯顿公开课 - 人性课程节选

As a candidate, Obama understood the political danger in letting his race become a major topic.

CNN: Race and politics in the age of Obama

He criticized his opponent for speaking in Germany as a candidate rather than as a president.

NPR: McCain's Foreign Policy Has Disparate Tones

Montenegro applied for membership in 2008, and was confirmed as a candidate country two years later.

BBC: Montenegro EU membership report