形容词
中文翻译：近似的
同义词：
['near', 'roughly', 'approximately']
例句：
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1. The distance between the two cities is approximately 500 kilometers.
这两个城市之间的距离大约是500公里。
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2. He estimated that the population of the city would be approximately 1 million.
他估计这个城市的人口大约是100万。
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3. The temperature in this area is approximately 20 degrees Celsius.
这个地区的温度大约是20摄氏度。