1
surmise that + clause
后接that从句，表示推测的内容。
I surmise that he will arrive late.
我猜测他会迟到。
推测；猜测；臆测
先理解核心含义，再看它在真实句子里的用法。
推测；猜测；臆测
A guess or suspicion based on little or uncertain evidence.
I surmise that he will arrive late.
我猜测他会迟到。
基于薄弱或不充分证据的想法、想象或推测；怀疑；猜测。
Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
反思；思考；假定。
Reflection; thought; posit.
Her surmise that he had forgotten the meeting turned out to be wrong.
她猜测他忘记了会议，结果证明她猜错了。
These are only surmises; we need more evidence before we decide.
这些只是猜测；在我们决定之前需要更多证据。
His success confirmed my earlier surmise about his talent.
他的成功证实了我先前对他才能的推测。
后接that从句，表示推测的内容。
I surmise that he will arrive late.
我猜测他会迟到。
直接接名词或代词作宾语。
She surmised the outcome of the experiment.
她推测出了实验的结果。
用from引出推测依据。
From his expression, I surmised his disappointment.
从他的表情，我推测出他的失望。
不定式作宾语补足语，表示推测的状态或身份。
They surmised the missing hiker to be lost.
他们推测失踪的徒步旅行者迷路了。
Not this
There is little surmise about his intention.
Use this
There are few surmises about his intention.
surmise作为名词是可数名词，表示‘推测’时常用复数形式，而中文‘推测’既可作不可数也可作可数，导致学习者误用不可数形式。
Not this
He expressed a surmise on the election result.
Use this
He expressed a surmise about the election result.
表示‘对……的推测’时，surmise后接介词about而非on，这是英语固定搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
纯属推测；仅仅是猜测
His conclusion is mere surmise, not fact.
他的结论纯属推测，并非事实。
无根据的猜测；瞎猜
Their accusations are based on idle surmise.
他们的指控基于无端的猜测。
模糊的猜测；隐约的推测
I had a vague surmise that the plan might fail.
我隐约猜测这个计划可能会失败。
大胆的猜测；异想天开的推测
The discovery filled them with wild surmise.
这一发现让他们充满了大胆的猜测。
基于……的推测；假定……
They went to the harbor on the surmise that the ship had arrived.
他们前往港口，推测那艘船已经到达了。
大胆的猜测；凭空的推测
Standing on the cliff, we made a wild surmise about what lay beyond the horizon.
站在悬崖上，我们对地平线之外的事物作了一番大胆的猜测。
纯属猜测；毫无根据的推测
The accusation is mere surmise; there is no evidence to support it.
这种指控纯属猜测，没有任何证据支持。
猜想与推测；臆测
The theory rests on conjecture and surmise rather than solid data.
这一理论建立在猜想与推测之上，而非可靠的数据。
或者像目光如鹰的科尔特斯，凝视着太平洋——他所有的同伴都带着一种狂野的猜测面面相觑——默默站在达里安的峰顶。
This famous passage comes from John Keats's sonnet 'On First Looking into Chapman's Homer', which describes the poet's excitement upon first reading Homer's epics in English translation.
这段著名诗句出自约翰·济慈的十四行诗《初读查普曼译荷马》，描绘了诗人初次读到查普曼英译荷马史诗时的激动心情。
Use surmise naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
看到surmise开头的sur，可联想sure（确定），但词义却是证据不足时的猜测——心里不sure，只好surmise。
语域：formal 常见场景：正式写作、文学或学术讨论 作为名词，surmise 通常出现在正式或书面语境中，表示基于薄弱证据的猜测或推测；在日常口语中比较少见。
Often used in formal contexts; e.g., 'It is a mere surmise.'
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.