形容词
中文翻译：近似的
同义词：
['near', 'approximately', 'roughly']
例句：
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1.The temperature is approximately 20 degrees Celsius.
温度大约是20摄氏度。
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2.The distance between the two cities is approximately 300 kilometers.
两个城市之间的距离大约是300公里。
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3. The price of this product is approximately $50.
这个产品的价格大约是50美元。