音标：[.spekju'leiʃәn] ；

n. 沉思, 推测, 投机
[经] 投机交易, 买空卖空

n. a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
n. an investment that is very risky but could yield great profits

词型变化：名词复数形式 : speculations
考试类型：[托福]

词性分布：

名词100%

speculation的用法和样例：

例句

用作名词(n.)

They have much speculation over the cause of the air crash.他们对飞机坠毁原因有多方推测。
Speculation has reached such a pitch that a decision will have to be made immediately.这种胡乱猜测甚嚣尘上，已经到了必须立即解决的程度了。
He makes some unprofitable speculations.他在做些无利可图的投机生意。
She lose all her money in stock exchange speculation.她将所有的钱赔进了股票投机生意。
The Big Bang is a kind of speculation or guess rather than a proven fact.大爆炸只是一种思索和推测并不是已证明的事实。

词汇搭配

stock speculation股票投机
bear speculation空头投机
monetary speculation金融投机
dabble speculation小试投机
pure speculation纯属揣测
engage in speculation从事投机,做投机生意...
refrain speculation抑制投机
foreign exchange speculation外汇投机
commercial speculation商业炒作
speculation in securities证券投机
joint speculation合伙投机买卖...
destabilization speculation使市场不稳定的投机...
destabilizing speculation破坏稳定的投机...
exchange speculation外汇投机
wildcat stock speculation非法经营的股票投机...
intellectual speculation知识的思索
business speculation商业投机
bull speculation多头投机
on speculation投机,碰运气地...

经典引文

Mere romantic speculation of political dreamers.
出自：H. P. Brougham
Speculation increased that we might..devalue the dollar.
出自：Lyndon B. Johnson
Speculations as to what went on in the artist's mind are unverifiable.
出自：I. A. Richards

【近义词】

conjecture推测
supposition假设
theory学说
assumption假定
guesswork臆测
meditation沉思
opinion意见
rumour谣言
rumor谣言
gossip流言蜚语
venture冒险(事业)
hearsay传闻
thinking思考
surmise推测
guess推测
reflection倒影
pondering经过深思熟虑的...
thought思想
headwork劳心的工作
brainwork智力工作
musing沉思
rumination反刍
lucubration刻苦研究
examination考查
contemplation注视
brooding孵卵
cogitation慎重考虑
cerebration大脑活动
weighing称(量重)
mulling研碎的
deliberation熟虑
trading买卖
investment投资
sporting体育运动的
inference推理
gambling赌博
conclusion结尾
conviction坚信
position位置
judgment裁判
suspicion猜疑
postulation假定
deduction扣除
persuasion说服
postulate假定
presumption推测
impression印象
forecast预测
feeling感觉
conception概念
consideration考虑
prospect希望
prediction预言
study研究
capital首都
the那
stock存货
playing比赛
risk危险
market市场
of关于
shot注射
hypothesis假说
surmisal猜测

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