armchair sth
armchair 作动词时通常指脱离实际数据或实地经验进行构想，常带批评意味。
They armchaired a theory about the market without collecting any new data.
他们没有收集任何新数据，就凭空构想了一个关于市场的理论。
基于先前数据推演；反思；基于理论或一般知识而非数据来构想；基于先前收集的数据进行理论推演；反思
基于理论或一般知识而非数据来构想
To create based on theory or general knowledge rather than data.
基于先前收集的数据进行理论推演；反思
To theorize based on analysis of data that was gathered previously; to reflect.
一般现在时
We often armchair policy ideas without checking evidence.
我们常常不经核实证据就凭空设想政策方案。
一般过去时
The committee armchaired the response based on old reports.
委员会仅根据旧报告凭空拟定了应对措施。
现在完成时
She has armchaired the conclusion without real fieldwork.
她在没有实地调查的情况下凭空得出了结论。
该动词由名词 armchair 转化而来，指脱离数据或实践、仅凭理论或既有资料进行思考；属于规则动词。
We should not armchair the whole plan; we need to check the actual numbers first.
我们不应该凭空构想整个计划；我们需要先核对实际数字。
用法提示：armchair 在这里作动词原形，表示仅凭一般知识或理论而不是真实数据来构想。
He armchaired a complete answer to the question before checking any of the records.
他在核实任何记录之前，就凭理论推想出了一个完整答案。
用法提示：armchaired 是 armchair 的过去式，表示基于先前已有的理解或数据进行分析推想。
They are armchairing possible causes of the noise instead of inspecting the engine.
他们没有检查发动机，而是在凭空推想噪音的可能原因。
用法提示：armchairing 是现在分词，与 are 构成进行时，表示正在凭一般知识反思、推想。
armchair 作动词时通常指脱离实际数据或实地经验进行构想，常带批评意味。
They armchaired a theory about the market without collecting any new data.
他们没有收集任何新数据，就凭空构想了一个关于市场的理论。
被动形式 be armchaired 强调构想或推演的结果，而非亲自调查的过程。
The policy was armchaired by analysts who had never visited the region.
这项政策是由从未到访该地区的分析师凭空构想出来的。
grammar · medium
易错句子She armchair a new theory from the old data every week.
正确表达She armchairs a new theory from the old data every week.
英语一般现在时里，主语是第三人称单数（she/he/it）时，动词必须加 -s/-es；汉语动词不随人称变化，所以学习者常漏掉这个 -s。armchair 的第三人称单数形式是 armchairs。
grammar · medium
易错句子Last night he armchair a whole model of the market without any data.
正确表达Last night he armchaired a whole model of the market without any data.
英语规则动词的过去式要加 -ed；汉语靠“昨天”“了”等词表示过去，动词本身不变，因此容易把过去式写成原形。armchair 的过去式是 armchaired。
grammar · medium
易错句子His armchair of the results took the whole afternoon.
正确表达His armchairing of the results took the whole afternoon.
在需要名词性成分作主语或介词宾语时，英语要用动词的 -ing 形式（动名词）；汉语的动词和名词形式不变，容易直接套用原形。单独的 armchair 会被读成名词“扶手椅”，所以这里应改为动名词 armchairing。
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