We can never promise to sail anywhere in particular, because the weather might militate against it.

天有不测风云，所以我们永远都不会保证具体航行到哪个地方。

《柯林斯英汉双解大词典》

I never promise anything more than I can give.

我从来没许诺过任何我不能能实现的东西。

youdao

We never promise viral hits because very few organizations are interested in being edgy enough, or off-message enough, to make their video a must-see.

我们从不承诺病毒性传播，因为很少的组织愿意通过偏离主题或者其它方式使他们的视频变成一个病毒性视频。

youdao

He made Robinson promise that he would never show his anger on the baseball field.

VOA: special.2009.04.05

The British Government will never promise to pay you 10% more each year because they can't do it.

英国政府永远都不会承诺给你们,每年支付你们高于10%的利息,因为他们根本就做不到

耶鲁公开课 - 金融市场课程节选

The covenant also entails God's promise to restore the rhythm of life and nature and never again to destroy the earth.

诺亚之约，使上帝必须信守自己的诺言,重新恢复人类和自然的秩序，永远不能再毁坏。

耶鲁公开课 - 旧约导论课程节选

That was never the promise -- never the promise.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

That was never the promise.

WHITEHOUSE: REMARKS BY THE FIRST LADY AT A CAMPAIGN EVENT

When I got back in bed, I made myself promise never to think of the letters again.

NPR: Chapter 1