形容词
中文翻译：有效的
同义词：
['capable', 'efficient', 'productive', 'efficacious']
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 style is highly effective in inspiring teamwork.
经理的领导风格在激发团队合作方面非常有效。
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3. The medicine is effective against the common cold.
这种药对普通感冒很有效。