1
a speculator in [market/field]
in 后接所投机或操作的市场领域，如 stock market、real estate。
He was a speculator in the stock market.
他在股票市场是个投机者。
臆测者；猜测者
先理解核心含义，再看它在真实句子里的用法。
臆测者；猜测者
speculator
He was a speculator in the stock market.
他在股票市场是个投机者。
进行推测的人；观察者；沉思者。
One who speculates; an observer; a contemplator.
在不了解事实的情况下进行推测的人
someone who makes conjectures without knowing the facts
形成理论的人；理论家。
One who forms theories; a theorist.
冒着损失风险以获取可观收益的人
someone who risks losses for the possibility of considerable gains
The property speculator bought several old houses, hoping their value would double.
那个房地产投机者买下几栋旧房子，希望它们的价格能翻倍。
Many speculators sold their gold when prices suddenly dropped.
很多投机者在金价突然下跌时卖出了他们的黄金。
Unlike careful investors, a speculator often makes decisions based on rumors.
与谨慎的投资者不同，投机者常常根据传闻做决定。
in 后接所投机或操作的市场领域，如 stock market、real estate。
He was a speculator in the stock market.
他在股票市场是个投机者。
这种复合名词结构中，前面的名词说明投机对象，常见搭配有 property、land、stock。
The property speculator sold the building at a profit.
那名房地产投机商把房子卖掉赚了钱。
who 引导定语从句修饰 speculator，用于说明该投机者的行为或特点。
A speculator who buys on rumor may lose money.
根据传闻买入的投机者可能会赔钱。
复数形式 speculators 作主语时，谓语动词需用复数。
Speculators drove up the price of oil.
投机者抬高了石油价格。
Not this
He is speculator in the stock market.
Use this
He is a speculator in the stock market.
speculator 是可数名词单数，前面需要冠词 a；汉语没有冠词，容易漏掉，但英语中单数可数名词不能单独使用。
Not this
There are many speculator in the property market.
Use this
There are many speculators in the property market.
speculator 是可数名词，many 后要用复数形式，因此需加 -s；汉语名词没有复数变化，所以容易漏掉。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
房地产投机者
Property speculators bought entire blocks and then sold them at huge profits.
房地产投机者买下整片街区，然后高价卖出赚取巨额利润。
股市投机者
As a stock-market speculator, she bought shares for short-term gains.
作为股市投机者，她买入股票是为了短期收益。
大宗商品投机者
Commodity speculators can cause sudden price swings in wheat and oil.
大宗商品投机者可能引起小麦和石油价格的突然波动。
金融投机者
The financial speculator gambled with borrowed money and went bankrupt.
这位金融投机者用借来的钱赌博，最终破产了。
投机者最主要的敌人总是从内心滋生。希望和恐惧与人性密不可分。
In 'Reminiscences of a Stock Operator,' the legendary trader warns that a speculator must constantly fight his own emotions.
在《股票作手回忆录》中，这位传奇交易员警告说，投机者必须不断与自己的情绪作斗争。
个人投资者应始终如一地作为投资者行事，而不是作为投机者。
This advice from 'The Intelligent Investor' reminds us that a speculator risks capital on hunches rather than analysis.
《聪明的投资者》中的这一建议提醒我们，投机者凭预感而非分析冒险投入资本。
Use speculator naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
和 spectator（旁观者）很像：旁观者只看不猜，speculator 却盯着行情，凭猜想下注投机。
语域：formal 常见场景：academic writing、formal debate、literary criticism 此处指“猜测者、臆测者”，即不掌握事实就作出推断的人。该用法多用于书面语或正式讨论，日常口语中较少见。注意常带轻微贬义，表示说话人认为其推断缺乏依据。
Speculator is pronounced /ˈspɛkjəleɪtər/ and ends in -ulator. Calculator shares the exact /kjəleɪtər/ ending; regulator and simulator have the same final /jəleɪtər/ sound after a different consonant; escalator has a similar /leɪtər/ ending. Beware spectator: it looks similar in spelling but is pronounced /ˈspɛkteɪtər/, with no /j/ after the /k/.
Dictionary facts from ECDICT, WIKTIONARY.