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