speculation
用法要点
句型搭配
speculation常与动词engage in、lead to、fuel等连用，表示进行或引发猜测；也用于there is speculation that...句型，引出具体猜测内容。
介词用法
speculation后常接about或on，表示猜测的对象或主题；在金融语境中，可与in连用，指在某个市场的投机行为。
语域说明
speculation在学术和商务语境中较正式，指理论推测或金融投机；日常对话中可指普通猜测，但比guess更书面化。
基础例句
There's a lot of speculation about who will win the game tonight.
关于今晚谁会赢得比赛，有很多猜测。
Her sudden resignation led to speculation about her reasons.
她突然辞职引发了人们对她原因的猜测。
I don't want to engage in idle speculation; let's wait for the facts.
我不想进行无谓的猜测，我们还是等事实吧。
高级例句
The company's stock price surged due to speculation about a potential merger.
由于对潜在合并的猜测，该公司股价大幅上涨。
Economic theories often begin with speculation before empirical testing.
经济理论通常在实证检验之前始于推测。
Investors engaged in high-risk speculation in the cryptocurrency market.
投资者在加密货币市场进行了高风险投机。
高频搭配
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常见错误
speculation通常不用于个人主观感觉，而指基于不完整信息的猜测；日常场景中可用feeling或guess代替。
speculation作为名词，常与engage in等动词短语搭配，表示进行投机行为；直接说made a speculation不自然。
近义词辨析
guess
guess更口语化，指基于直觉或少量信息的简单猜测；speculation更正式，强调基于不完整信息的深思或推理，常用于学术或金融语境。
It's just a guess vs. There is scientific speculation about the phenomenon.
conjecture
conjecture与speculation都指推测，但conjecture更强调缺乏证据的假设，常见于哲学或数学；speculation更通用，可指日常猜测或金融投机。
His theory remains mere conjecture vs. Market speculation drove prices up.