The presidential nominee was advised to choose a woman as a running mate.

有人建议总统候选人找一位女性竞选伙伴。

《牛津词典》

Neither candidate has given any strong indications as to who his running mate will be.

两位候选人目前都没有任何迹象显示他们的竞选搭档是谁。

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Obama's running mate, Senator Joe Biden, campaigned in a different part of Pennsylvania Friday.

奥巴马的竞选搭档拜登参议员星期五在宾夕法尼亚州另外一个地方竞选。

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She became well-known after Republican presidential candidate John McCain chose her as his vice presidential running mate.

VOA: special.2009.01.03

Delegates considered several other candidates before they chose him as Roosevelt's running mate.

VOA: special.2011.07.28

Sarah Palin emerged from national obscurity in 2008 to become Republican presidential candidate John McCain's vice presidential running mate.

VOA: standard.2010.02.09

And I believe had McCain picked a more qualified running mate, he would've had a better chance.

BBC: Voters' Views: Jessica Ross

In fact, Senator McCain was asked if he would consider Lieberman as a possible running mate.

NPR: Presidential Contenders Push for Last-Minute Votes

When someone asked if Sarah Palin was a potential running mate, he laughed.

FORBES: Trump Talks Presidential Run As He Gets Scottish Degree