许下有企图的大承诺，并且试著遵守！

Make big promises and keep them.

youdao

但这三个方面确是奥巴马在竞选时所做出的三大承诺。

Yet these were Mr. Obama's three main campaign promises.

youdao

这意味着英国将在2017年前就是否脱欧盟举行全民公投，因为这是保守党在竞选时最为关键的一大承诺。

The Tories will have to deliver a referendum by 2017 over whether Britain will stay part of the EU or not, since it was a linchpin pledge during the campaign.

youdao