形容词
中文翻译：不足够的
同义词：
['inadequate', 'insufficient']
例句：
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1.The teacher's explanation was not sufficient for me to understand the concept clearly.
老师的讲解不足以让我清楚地理解这个概念。
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2. The food was not sufficient to satisfy my hunger.
食物不足以满足我的饥饿。
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3.The company's budget was not sufficient to cover all expenses.
公司的预算不足以覆盖所有费用。