形容词
中文翻译：普通的
同义词：
['ordinary', 'average', 'ordinary']
例句：
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1. The common cold is a verycommon illness.
普通感冒是一种非常普遍的疾病。
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2.He was surprised to find that the commontools were not available in his area.
他惊讶地发现，他的地区没有常见的工具。
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3. Common sense tells us that we shouldalways be careful when crossing the street.
常识告诉我们，过马路时我们应该总是小心。