形容词
中文翻译：愚蠢的
同义词：
['foolish', 'silly', 'stupid']
例句：
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1. He was so dumb that hecouldn't even understand the instructions.
他太愚蠢了，以至于听不懂指示。
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2. Thechild was so dumb that she didn't know how to play the piano.
这个孩子太愚蠢了，她不知道如何弹钢琴。
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3. The professor was so dumb thathe couldn't answer any of thestudents' questions.
教授太愚蠢了，他无法回答任何学生的问题。