名詞 endeavor:

1. a purposeful or industrious undertaking (especially one that requires effort or boldness)
   同義詞：enterprise, endeavour
2. earnest and conscientious activity intended to do or accomplish something
   同義詞：attempt, effort, endeavour, try

動(dòng)詞 endeavor:

1. attempt by employing effort
   同義詞：endeavour, strive

1. How can we endeavor to prolong the brevity of human life?
   我們?cè)鯓硬拍苎娱L(zhǎng)短促的人生？
2. An effort or endeavor to realize an aim.
   奮斗為達(dá)到目標(biāo)而作的努力或嘗試
3. A specified structure or zone into or over which players endeavor to advance a ball or puck.
   球門某一特定的結(jié)構(gòu)或區(qū)域，從中運(yùn)動(dòng)員努力進(jìn)球或冰球
4. Please make every endeavor to be early.
   請(qǐng)盡量早點(diǎn)兒。
5. The man endeavored to please his beloved wife.
   那人盡量使他深愛(ài)的妻子快樂(lè)。

en.deav.or

n.（名詞）
A conscientious or concerted effort toward an end; an earnest attempt.
努力，盡力：為達(dá)到目標(biāo)而所做的盡職的、一致的努力；熱切的嘗試
Purposeful or industrious activity; enterprise.See Synonyms at effort
企圖，進(jìn)取心：有目的的、勤勉刻苦的行動(dòng)；進(jìn)取心參見(jiàn) effort
v.（動(dòng)詞）
en.deav.ored,en.deav.or.ing,en.deav.ors
v.tr.（及物動(dòng)詞）
To attempt (fulfillment of a responsibility or an obligation, for example) by employment or expenditure of effort:
奮力，努力：通過(guò)運(yùn)用或消耗努力而試圖（例如履行一項(xiàng)職責(zé)或一份義務(wù)）：
例句：
endeavored to improve the quality of life in the inner city.
努力改善城市內(nèi)的生活品質(zhì)

v.intr.（不及物動(dòng)詞）
To work with a set or specified goal or purpose.
企圖，謀求：帶有確定目標(biāo)或指定目的而工作

來(lái)源：
Middle English endevour
中古英語(yǔ) endevour
from endeveren [to make an effort]
源自 endeveren [做努力，盡力]
from (putten) in dever [(to put oneself) in duty, make it one`s duty]
源自 (putten) in dever [（將自己）置于職責(zé)之中，使其擔(dān)負(fù)某人職責(zé)]
in [in] * see in
in [在…中] *參見(jiàn) in
dever [duty] from Old French deveir, devoir [duty] * see devoir
dever [職責(zé)，義務(wù)] 源自 古法語(yǔ) deveir, devoir [職責(zé)] *參見(jiàn) devoir

【引伸】
endeav.orer
n.（名詞）