They are animals which know no boundaries.

它们是没有边界限制的动物。

youdao

I always remember that Zhuangzi "Health is also invited to sit on, makes me know also knows no boundaries," the famous saying, I am not wise, but I have a dedicated heart.

我时刻记住庄子“生也有涯，而知也无涯”的名言，我不是智者，但我有一颗执着的心。

youdao

The epicenter of the crisis may be in Europe, but the shockwaves will know no boundaries.

CNN: What happens to your money during Eurogeddon?

Ideas know no boundaries, at least in what we continue to think of as the Free World.

CENTERFORSECURITYPOLICY: An Open Letter to the Government of the UK

All of these problems know no political boundaries, and affect rich countries the same as poorer ones.

BBC: Have your say: Harry Patch