| 单词 | of the essence | 
| 释义 | of the essence phraseSee full dictionary entry for  essence If you say that something is of the essence, you mean that it is absolutely necessary in order for a particular action to be successful.  [formal]  Time is of the essence.    Speed was of the essence in a project of this type.   Synonyms: vitally important, essential, vital, critical    | 
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