be + simple-minded
常含贬义，指缺乏洞察力或判断力。
He is simple-minded.
他很头脑简单。
智力低下的；愚钝的
头脑简单的；单纯的；缺乏洞察力的；缺乏微妙或老练的。；缺乏细微差别和洞察力的；缺乏心智能力的；愚笨的。；缺乏智力和细微差别的
Lacking mental capacity; having very limited intelligence or understanding.
缺乏微妙或老练的。
Lacking subtlety or sophistication.
缺乏细微差别和洞察力的
lacking subtlety and insight
缺乏心智能力的；愚笨的。
Lacking mental capacity; feeble-minded.
缺乏智力和细微差别的
lacking mental capacity and subtlety
He is so simple-minded that he believes every advertisement he sees.
他头脑简单，以至于相信他看到的每一个广告。
用法提示：simple-minded 作表语形容词，描述某人缺乏判断力，容易受骗。
AI contextual example
The simple-minded approach to the problem failed to address its underlying causes.
这种头脑简单的处理方式未能触及问题的根本原因。
用法提示：simple-minded 作定语形容词，修饰方法，表示过于简单化缺乏深度。
AI contextual example
She is not simple-minded; she knows exactly how to manipulate the situation.
她并不头脑简单；她清楚地知道如何操纵局势。
用法提示：simple-minded 作表语形容词，用于否定句中，表示某人智力或理解力不足。
AI contextual example
常含贬义，指缺乏洞察力或判断力。
He is simple-minded.
他很头脑简单。
She is a simple-minded person.
她是一个头脑简单的人。
He is as simple-minded as a child.
他像孩子一样头脑简单。
grammar · medium
易错句子He is very simple, so he didn't understand the joke.
正确表达He is very simple-minded, so he didn't understand the joke.
中文学习者常将“simple”误用为“头脑简单”，但“simple”主要表示“简单、容易”，而“simple-minded”才指“头脑简单、缺乏辨别力”。
grammar · medium
易错句子He is a simple-minded.
正确表达He is simple-minded.
中文学习者受母语影响，常将形容词“simple-minded”当作名词使用，但英语中形容词作表语时无需加冠词，正确用法是“He is simple-minded”。
simple-minded 指人头脑简单、缺乏洞察力，而 simplistic 指方法或观点过于简单化、忽视复杂性。
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