We cannot guarantee adequate supplies of raw materials.

我们不能保证提供充足的原料。

《牛津词典》

We cannot guarantee (that) our flights will never be delayed.

我们不能保证我们的所有航班均不误点。

《牛津词典》

We cannot guarantee the results if you do that.

如果你那样做，我们无法保证结果。

youdao

But Howells acknowledged the government cannot guarantee that some of the terror suspects picked up and held in other countries did not have their human rights abused.

VOA: standard.2009.08.10

Hopefully within two years, probably not next year, but within two years, there will be positive psychology class offered, but I certainly cannot guarantee it.

但愿两年内，明年可能性不大，但是两年内，学校会再次开设积极心理学课程，但我无法保证。

哈佛公开课 - 幸福课课程节选

There were words in there--they said something--of course, we cannot guarantee that they won't go up in value but historically they have always done it or something like that.

他们在文中吹嘘...当然,我们不能保证金币不会升值,但金币的历史行情趋势始终向上

耶鲁公开课 - 金融市场课程节选

Under different market conditions, performance will vary and past performance cannot guarantee future results.

FORBES: Put Intermediate Muni Funds In Your Portfolio's Rotation

We CANNOT guarantee that this software will work after any future updates for the iphone.

ENGADGET: iPhoneSIMfree begins fulfilling bulk orders, apparently will not unlock end users' phones

The world and markets cannot guarantee your financial stability for forty to fifty years of retirement.

FORBES: The Fallacy Of Saving For Traditional Retirement