精髓的英文：
marrow
pith
quintessence
essence

参考例句：

The inmost,choicest,or essential part;the pith.
实质，精华，精髓最深层、最紧要或最必要的部分;精华

The essence of morality
道德的精髓

The core of truth
真理的精髓

The theory of the dictatorship of the proletariat is the quintessence of Marxism
无产阶级专政的理论是马克思主义的精髓。

This paragraph is the quintessence of the article.
这一段是文章的精髓。

Most important or essential part of sth;essence
最重要部分;精髓

Project Management Essence
实用项目管理精髓

Harmony was the soul of our companionship.
和睦可以说是我们友谊的精髓。

Unconsciousness theory is one of the quintessences of the spiritual analysis.
潜意识理论是精神分析学说的精髓之一。

Her book captures the quintessence of Renaissance humanism.
她的书抓住了文艺复兴时期人文主义的精髓.

marrow是什么意思：
n. 骨髓；精华；活力；食用葫芦

He was chilled to the marrow.
他是冷到了骨髓。

Fear took the marrow out of him.
恐惧使他失去了活力。

We're getting into the marrow of the film.
我们就要进入这部电影最精彩的部分了。

pith是什么意思：
n. 木髓,骨髓,核心,意义,精华
vt. 除去木髓,杀死

The inmost,choicest,or essential part;the pith.
实质，精华，精髓最深层、最紧要或最必要的部分;精华

Both the rubber and the pith ball are negatively charged.
这时，橡胶棒和木髓球两者都带负电荷。

The pith of this stemlike stele appears rather strongly like collenchyma tissue
茎状中柱的髓显得颇强健，像厚角组织。

quintessence是什么意思：
n. 典范；精髓

He is the quintessence of tact and politeness.
他处世谦恭得体。

But what they are really attacking is the quintessence of Marxism
但是他们所攻击的正是马克思主义的最根本的东西。

The theory of the dictatorship of the proletariat is the quintessence of Marxism
无产阶级专政的理论是马克思主义的精髓。