形容词
中文翻译：基本的
同义词：
['basic', 'fundamental', 'primary']
例句：
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1. The teacher explained the concept of elementarymathematics to the students.
老师向学生们解释了基本数学的概念。
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2. Thebook is written for elementaryreaders.
这本书是为初级读者写的。
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3. The child's understanding of basicconcepts was very limited.
这个孩子对基本概念的理解非常有限。