形容词
中文翻译：有效的
同义词：
['capable', 'efficient', 'fruitful', 'productive', 'successful']
例句：
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1. The new policy is expected to be effective in reducing pollution.
新政策预计将有效减少污染。
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2. The manager's leadership was effective in improving the team's performance.
经理的领导在提高团队表现方面是有效的。
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3. Her advice was effective in helping me solve the problem.
她的建议对我解决问题非常有效。