The tension can never be negative.

张力不能为负数。

youdao

Well it could go twenty basis points lower but interest rates can never be negative.

呃，它可以再跌二十个基本点，但是利率永远不能是负值。

youdao

In particular, the speed of the Moon around the Sun will never be negative, so the Moon will never loop backwards.

特别是月球绕行太阳的速度决不可能是负的，所以月球永远不会向后打转。

youdao

Well it could go twenty basis points lower but interest rates can never be negative.

呃，它可以再跌二十个基本点,但是利率永远不能是负值。

耶鲁公开课 - 金融市场课程节选

And against that, we could have the pessimists who say, "The negative side especially once we throw in the negative interaction effects, the negative side is so great that " that it would be better never to have been born at all."

而与此相反，可能有悲观主义者说，“消极的方面,特别是我们一旦把负面相互影响考虑进去，消极的方面就会变得,让我们觉得还是压根别出生的好“

耶鲁公开课 - 死亡课程节选

Or in other cases, studies with negative conclusions may never be published, so next time you'll hear a piece of advice about what you should or shouldn't be eating or drinking, consider the source.

NPR: Researchers Find Bias in Nutrition Studies

Or the PS4 could be powered by a pink slime that feeds on negative energy, you never know.

ENGADGET: Sony said to be hanging onto Cell processor for PlayStation 4

It would seem from these studies that rhBMP never had any negative side effects at all, which is almost too good to be true.

FORBES: Medtronic Gets A Pain In The Back