n.精髓；本质；要素；香精

Flavor of life is always sweet, because they always taste the essence of life. 生活的味道总是甜蜜的,因为他们总是品尝到生活的精髓。

Caution is the essence of that man's character. 谨慎是那人性格的本质。

The two things are the same in outward form but different in essence. 那两样东西在外表上相同，但在本质上不同。

The two arguments are in essence the same. 这两个论点大致相同。

Speed is of the essence in dealing with an emergency. 在处理紧急事件时，速度是非常重要的。

Do you use coffee essence in making cakes? 你做蛋糕时用不用咖啡精？