study, consider, ponder, weigh, contemplate

動詞 ponder:

1. reflect deeply on a subject
   同義詞：chew over, think over, meditate, excogitate, contemplate, muse, reflect, mull, mull over, ruminate, speculate

1. We pondered whether to tell her.
   我們考慮是否要告訴她。
2. They are pondering moving their offices outside London.
   他們正在考慮把辦事處搬出倫敦。
3. He pondered for some minutes before giving an answer.
   他思考了幾分鐘才作答復(fù)。

pon.der

v.（動詞）
pon.dered,pon.der.ing,pon.ders
v.tr.（及物動詞）
To weigh in the mind with thoroughness and care.
思索，衡量：在頭腦中徹底且仔細地加以權(quán)衡
v.intr.（不及物動詞）
To reflect or consider with thoroughness and care.
仔細考慮，沉思：徹底且仔細地思考或考慮

來源：
Middle English ponderen
中古英語 ponderen
from Old French ponderer
源自 古法語 ponderer
from Latin ponder3re * see (s)pen-
源自 拉丁語 ponder3re *參見 (s)pen-

【引伸】
pon.derer
n.（名詞）
<參考詞匯><同義詞>ponder,meditate,deliberate,ruminate,mull,museThese verbs mean to consider something carefully and at length. Toponder is to weigh in the mind with painstaking thoroughness and care:
這些動詞表示仔細而詳盡地考慮某件事情。Ponder 是指用煞費苦心的詳盡和仔細在頭腦中權(quán)衡：
例句：
.He and the council had already pondered the list of members returned to the parliament. (John Morley).
.他和委員會已經(jīng)認真地考慮過了重返國會的人員名單. （約翰·摩利）。

例句：
.The Doctor had been pondering, and had made up his mind to a certain course. (Henry Kingsley).
.這個醫(yī)生已經(jīng)苦思冥想了一段時間并已決定要采用某種方法. （亨利·金斯利）。

Meditate implies serious consideration,as of undertaking a course of action or of implementing a plan;the term can also denote engagement in deep reflection:
Meditate 暗指嚴肅的思考，比如對于采取一項行動或執(zhí)行一項計劃所做的考慮；這個詞還可表示陷入深深的思考：
例句：
.The King struck the blow he had for some time meditated. (William E.H. Lecky).
.國王實施了他考慮已久的打擊. （威廉E.H.萊奇）。

例句：
.He quitted her presence to meditate upon revenge. (Frederick Marryat).Todeliberate is to think attentively and usually slowly, as about a choice or decision to be made:
.他不讓她出現(xiàn)以考慮如何復(fù)仇. （弗雷德里克·瑪利亞特）。Deliberate 是指集中注意力地且通常是緩慢地思考， 如對于將要做出的一項選擇或決定的思考：

例句：
The jury deliberated for two days before returning a verdict.
陪審團在仔細斟酌了兩天后才做出了他們的最后決定。

Ruminate andmull imply turning a matter over and over again in the mind:
Ruminate 和mull 暗指把一件事情在腦子里翻來覆去地想：
例句：
.The old warrior king was . . . ruminating on his gloomy fortunes. (Washington Irving).
.年邁的武士之王正在…反復(fù)咀嚼他暗淡的命運和前途. （華盛頓·歐文）。

例句：
I sat mulling over my problem without finding a solution. Tomuse is to be absorbed in one`s thoughts; the word often connotes an abstracted quality:
我坐著一遍又一遍地思考我的問題，可總是找不到解決辦法。 Muse 是指沉浸在自己的思想中； 該詞經(jīng)常含有一種抽象的性質(zhì)：

例句：
.And musing there an hour alone,/I dreamed that Greece might still be free. (Byron).
.在那默想一個鐘頭，/我夢見希臘也許仍然自由. （拜倫）