名词
中文翻译：主要调查
同义词：
['major investigation', 'comprehensive survey例句：1. The government conducted a major survey on the effects of climate change on agriculture.（政府对气候变化对农业的影响进行了一项重要调查。）2. The company launched a major survey to gather feedback from its customers.（该公司启动了一项主要调查，以收集客户反馈。）']
例句：
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1. The government conducted a major survey on the effects of climate change on agriculture.
政府对气候变化对农业的影响进行了一项重要调查。
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2. The company launched a major survey to gather feedback from its customers.
该公司启动了一项主要调查，以收集客户反馈。
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3.The researchers conducted a major survey to understand the public's attitude towards environmental protection.
研究人员进行了一项主要调查，以了解公众对环境保护的态度。