名词
中文翻译：投资活动
同义词：
['investment', 'investment activity', 'investment behavior']
例句：
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1. The company's investment activity has increased significantly in the past year.
该公司的投资活动在过去一年内显著增加。
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2. The investment activity is expected to grow by 5% this year.
预计今年的投资活动将增长5%。
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3. The investment activity is closely monitored by the government to ensure compliance with regulations.
政府密切监控投资活动，以确保遵守规定。