动词
中文翻译：大约
同义词：
['approximately', 'roughly', 'approximately']
例句：
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1. He estimated the time of arrival at 9:00 AM.
他估计到达时间是上午9点。
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2. The estimate for the project's completion is two years.
该项目完成的时间估计为两年。
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3. The cost estimate for the new building was $5 million.
新建筑的成本估计为500万美元。