endeavor 是 endeavour 的美式拼法，意思一樣。多益（TOEIC）用美式拼法。
endeavor · endeavour
核心畫面
A useful way to picture it: someone leaning their whole weight into a task that does not give way easily — the effort is deliberate, sustained, and aimed at something worth reaching. Not a casual try, but putting yourself fully behind the attempt.
一個人把整個身體的重量都壓上去推一件推不太動的事。重點不在「有沒有做」，而在那份「明知不容易、還是認真使力」的姿態—…更多收起
一個人把整個身體的重量都壓上去推一件推不太動的事。重點不在「有沒有做」，而在那份「明知不容易、還是認真使力」的姿態——它比 try 更慎重、更有份量，通常也帶著正式一點的語氣。你可以把 endeavour 想成「試」的隆重版：不是隨手碰一下，而是把自己整個投進去。原始詞典資料5 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
endeavornoun/ɪnˈdɛv.ə/
- 1
A sincere attempt; a determined or assiduous effort towards a specific goal; assiduous or persistent activity.
- My fellow Americans: Last night, when I spoke with you about the fall of Rome, I knew at that moment that troops of the United States and our allies were crossing the Channel in another and greater operation. It has come to pass with success thus far. And so, in this poignant hour, I ask you to join with me in prayer: Almighty God: Our sons, pride of our Nation, this day have set upon a mighty endeavor, a struggle to preserve our Republic, our religion, and our civilization, and to set free a suffering humanity.
endeavorverb/ɪnˈdɛv.ə/
- 1
obsoleteTo exert oneself.
- 2
To attempt through application of effort (to do something); to try strenuously.
- 3
obsoleteTo attempt (something).
- 4
To work with purpose.
- He draws eclectically on studies of baboons, descriptive anthropological accounts of hunter-gatherer societies and, in a few cases, the fossil record. With this biological framework in place, Corning endeavors to show that the capitalist system as currently practiced in the United States and elsewhere is manifestly unfair.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。