形容词
中文翻译：有效的
同义词：
['efficacious', 'efficient', 'productive', 'successful']
例句：
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1. The new policy is expected to beeffective in reducing pollution.
预计新政策能有效减少污染。
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2. The medicine is effective for treatingthe common cold.
这种药对治疗普通感冒有效。
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3. The manager's leadership styleis effective in inspiring his team.
经理的领导风格在激励团队方面是有效的。