"the gist of the prosecutor's argument" "the heart and soul of the Republican Party" "the nub of the story"
The whole tradition is in its essence monastic.
He is neither cannibal nor laundryman, these are mere names, they do not touch his essence.
牛津高階第八版
美國韋氏詞典
Dictionary.com
Free Dictionary
維基百科 (自由的百科全書)