名詞 effort:

1. earnest and conscientious activity intended to do or accomplish something
   同義詞：attempt, endeavor, endeavour, try
2. use of physical or mental energy; hard work
   同義詞：elbow grease, exertion, travail, sweat
3. a series of actions advancing a principle or tending toward a particular end
   同義詞：campaign, cause, crusade, drive, movement
4. a notable achievement
   同義詞：deed, feat, exploit

1. Your effort is bound to be successful.
   你的努力一定會成功的。
2. Your success lies upon your effort.
   你成功與否取決于你的努力。
3. Put more effort into your work.
   你要更加努力地工作。
4. It's quite an effort to lift this heavy box.
   抬起這只沉重的箱子要花費相當(dāng)大的力氣。
5. Despite all our efforts we still lost the game.
   盡管我們盡了全力，我們還是輸?shù)袅吮荣悺?/div>

ef.fort

n.（名詞）
The use of physical or mental energy to do something; exertion.
努力：耗費精神或體力來做某事；費勁
A difficult exertion of the strength or will:
費神的事，困難的事：艱難地耗費精力或毅力：
例句：
It was an effort to get up.
起床是件費勁的事

A usually earnest attempt:
盡力：常指非常認(rèn)真的嘗試：
例句：
Make an effort to arrive promptly.
盡力早些趕到

Something done or produced through exertion; an achievement:
成就，成果：通過努力而能做到的或做出的事；成果：
例句：
a play that was his finest effort.
一部可作為他的最佳成果的戲劇

Physics Force applied against inertia.
【物理學(xué)】 作用力：對慣性施加的一種力

來源：
Middle English
中古英語
from Old French esfort
源自 古法語 esfort
from esforcier [to force, exert]
源自 esforcier [用力，使勁]
from Medieval Latin exforti3re
源自 中世紀(jì)拉丁語 exforti3re
Latin ex- [ex-]
拉丁語 ex- [前綴，表.出.]
Latin fortis [strong] * see bhergh- 2
拉丁語 fortis [強(qiáng)大的] *參見 bhergh- 2

【引伸】
ef.fortful
adj.（形容詞）
ef.fortfully
adv.（副詞）
<參考詞匯><同義詞>effort,exertion,endeavor,application,pains,troubleThese nouns refer to the expenditure of physical or mental energy to accomplish something.
這些名詞表示為完成某事而耗費體力或精力。
Effort applies to an attempt, great or small, to do something;where it is not qualified, the term usually implies a substantial expenditure of time, strength, or faculties:
Effort 指或大或小的嘗試來做某事，沒有其它限定詞時，常表示花了不少時間、精力或人力：
例句：
.What is written without effort is in general read without pleasure. (Samuel Johnson).
.不費勁寫出的東西常會讀之無趣. （塞繆爾·約翰生）。

Exertion implies the exercise of vigorous effort:
Exertion 表示充沛精力的耗費：
例句：
.England has saved herself by her exertions. (William Pitt the Younger).
.英格蘭通過自己的努力解救了自己. （小威廉·庇特）。

Endeavor suggests earnest striving to achieve a serious goal:
Endeavor 意指完成某一嚴(yán)肅的目標(biāo)而努力：
例句：
.There must be positive endeavors to preserve peace. (Franklin D. Roosevelt).
.肯定會有人盡力維護(hù)和平的. （弗蘭克林·D·羅斯福）。

Application connotes diligence, persistence, and hard work:
Application 暗指勤奮、持之以恒和努力工作之意：
例句：
He succeeded in his studies by dint of steadfast application.
由于堅持不懈的努力他獲得了學(xué)業(yè)上的成功。

Pains implies attentive or laborious effort:
Pains 暗指集中的或勤勞的努力：
例句：
.Genius is an infinite capacity for taking pains. (Jane Ellice Hopkins).
.天才往往吃無盡的苦. （簡·愛麗絲·霍布金斯）。

Trouble refers to effort that causes inconvenience or bother:
Trouble 指那些引起不便或干擾的努力：
例句：
Many people watch the news on television to save themselves the trouble of reading the newspaper.
許多人看電視新聞而省去讀報的麻煩