形容词
中文翻译：有效的
同义词：
['efficient', 'productive', 'efficient', 'efficacious']
例句：
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1. Thenew 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 medicine is very effective for treating the common cold.
这种药对治疗普通感冒非常有效。
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3. The manager's leadership style is highly effective in improving team morale.
经理的领导风格在提高团队士气方面非常有效。