be dim-witted
He is dim-witted and often misunderstands simple instructions.
他很笨，经常误解简单的指示。
愚笨；迟钝
缺乏心智能力和敏锐度；笨的；傻的
dim-witted
缺乏心智能力和敏锐度
lacking mental capacity and subtlety
He gave a dim-witted answer in class and everyone laughed.
他在课堂上给出了一个愚笨的回答，大家都笑了。
用法提示：dim-witted 作定语修饰 answer，表示“愚蠢的”。
It was a bit dim-witted of me to leave my keys in the car.
我把钥匙落在车里，真是有点糊涂。
用法提示：dim-witted 用在 It was ... of me 句型中作表语，说明行为愚蠢。
She tried to explain the joke, but he just gave her a dim-witted stare.
她想解释这个笑话，但他只是傻乎乎地盯着她。
用法提示：dim-witted 作定语修饰 stare，表示“呆滞的、愚笨的”。
He is dim-witted and often misunderstands simple instructions.
他很笨，经常误解简单的指示。
She played the role of a dim-witted assistant in the movie.
她在电影中扮演了一个愚蠢的助手角色。
The student was too dim-witted to grasp basic algebra.
那个学生太笨，无法理解基础代数。
最通用，语气直接，可形容人或言行；比 dim-witted 更常见，语气更不留情面。
侧重理解事物速度慢，不一定是智力低下；与 dim-witted 相近，但语气较中性。
较正式，可指反应迟钝或缺乏机智；形容人时语气温和，也可形容感官。
较书面、正式，强调明知却难领会，常含不耐烦的责备意味。
含天真、缺乏复杂思维能力之意，略带轻蔑或怜悯，不等同于智力低下。
grammar · medium
易错句子He is a dim-witted.
正确表达He is dim-witted.
在英语中，'dim-witted' 是形容词，不能直接跟在冠词 'a' 后面作名词。正确的用法是省略冠词，直接用形容词作表语。
grammar · medium
易错句子The room is dim-witted.
正确表达The room is dim.
'dim-witted' 形容人迟钝愚笨；形容光线不足或不明亮应用 'dim'。两者意义不同，不能混淆。
dim 可修饰光线或智力；dim-witted 只修饰智力
slow-witted 侧重反应慢；dim-witted 侧重理解力差
dull 可指智力或趣味；dim-witted 仅指智力低
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