形容词
中文翻译：有效的
同义词：
['practical', 'efficient', 'productive']
例句：
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1. This newsoftware is very effective at managing our inventory.
这款新软件在管理库存方面非常有效。
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2.The new policy has been found to be effective in reducing traffic congestion.
新政策已被证明能有效减少交通拥堵。
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3.The new marketing strategy was effective in increasing sales by 20%.
新的营销策略在提高销售额方面有效，增长了20%。