形容词
中文翻译：有效的
同义词：
['valid', 'efficient', 'productive例句：1. The new policyis expected to be effective in reducing pollution.（预计新政策将有效减少污染。）']
例句：
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1. The new policyis expected to be effective in reducing pollution.
预计新政策将有效减少污染。
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2. Themedicine is effective for treating the common cold.
这种药对治疗普通感冒有效。
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3. Themanager's suggestion was effective in improvingthe company's productivity.
经理的建议在提高公司生产力方面是有效的。