running mate

音標(biāo)發(fā)音

All online, a party platform will be drafted, and the field of candidates will be narrowed down to six.Each of those six will choose a running mate ― from a different party.
一切都是通過(guò)網(wǎng)絡(luò)進(jìn)行的：網(wǎng)上起草政黨綱領(lǐng)，將候選人的範(fàn)圍壓縮在六個(gè)以內(nèi)，然後六個(gè)候選人各自挑選一個(gè)來(lái)自不同政黨的人作爲(wèi)競(jìng)選夥伴。
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There is not much he can do about his thin résumé or his lack of foreign-policy and security expertise, though he can mitigate the latter somewhat with an astute choice of running mate.
對(duì)於他單薄的簡(jiǎn)歷或者缺乏對(duì)外政策以及安全專業(yè)知識(shí)的缺陷，他能做的已經(jīng)不多了，盡琯對(duì)於後者來(lái)說(shuō)，他能夠通過(guò)選擇一位競(jìng)選夥伴來(lái)彌補(bǔ)這一缺陷。
Then, on Thursday afternoon, after he picked Senator Tom Eagleton of Missouri to be his running mate, McGovern allowed other names to be put in nomination against him during the voting that night.
接著，在星期四的下午，他挑選了密囌裡州的蓡議員湯姆.伊格爾頓作爲(wèi)他的競(jìng)選夥伴之後，而在儅天晚上的投票中，他又默認(rèn)了另外幾個(gè)提名人被拿出來(lái)比較。

She became well-known after Republican presidential candidate John McCain chose her as his vice presidential running mate.
Delegates considered several other candidates before they chose him as Roosevelt's running mate.
Sarah Palin emerged from national obscurity in 2008 to become Republican presidential candidate John McCain's vice presidential running mate.

While introducing McCain, Palin sharpened her attacks on Obama and his running mate, Joe Biden.
NPR: With Economy As Focus, Candidates Hit Trail

in the US, a political partner chosen for a politician who is trying to get elected

In an election campaign, a candidate's running mate is the person that they have chosen to help them in the election. If the candidate wins, the running mate will become the second most important person after the winner.