'Walk' is the root of 'walks', 'walked', 'walking' and 'walker'.

walk是walks、walked、walking和walker的词根。

《牛津词典》

What is the root cause of all this?

造成这一切的根本原因是什么？

youdao

The next part of the hair is the root and this is the part of the hair which lies.

头发另一部分是头皮，这是头发生长的基础。

youdao

"The ideology to kill the civilians, that is the root cause, not the jihad,".

VOA: standard.2009.09.21

So we could say this is the root, maybe this is the third and that's the fifth.

我们可以说这个是根音，或许这个是三音，且那个是五音。

耶鲁公开课 - 聆听音乐课程节选

About 80% of the cyanide at that point is gone, so it does render the root much more safe.

这时大约百分之八十的氰化物都跑掉了，因此这确实可以使这些根更加安全。

麻省理工公开课 - 化学原理课程节选

It is said that the love of money is the root of all evil.

FORBES: What Drives The Best Entrepreneurs? Hint: It's Not Money

And because American arrogance is the root of the problem, the solution must be American contrition.

CENTERFORSECURITYPOLICY: One civilization clashing

For months now, he has argued that this is the root cause of his state's power crisis.

ECONOMIST: California��s power crisis