形容词
中文翻译：Unknown
同义词：
['near', 'roughly', 'approximately']
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. He estimated the time of arrival to be approximately two hours.
他估计到达时间大约是两个小时。
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3. We are approximately halfway through our project.
我们项目进行到一半了。