形容词
中文翻译：有效的
同义词：
['efficient', 'productive', 'beneficial', 'advantageous例句：1. The new policy is expected to be effective in reducing pollution.（预计新政策能有效减少污染。）']
例句：
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1. The new policy is expected to be effective in reducing pollution.
预计新政策能有效减少污染。
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2. The software is designed to be effective for both beginners and experts.
该软件旨在对初学者和专家都有效。
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3. The new marketing strategy is expected to be effective in increasing sales.
预计新的营销策略能提高销售额。