形容词
中文翻译：无智的
同义词：
['unwise', 'foolish', 'unintelligent', 'ignorant']
例句：
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1. Thechild was smartless when he failed to understand the lesson.
孩子在没理解课上的内容时显得无智。
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2.He was so stupid that he couldn't even recognize his own name.
他太笨了以至于连自己的名字都认不出来。
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3.The old man was wise in his ways but was considered smartless by his grandson.
老人在他的方式上很明智，但被他的孙子认为是无智的。