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| ADJ |
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| /ɪˈfektɪv/ |
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| 1 | someone or something that is effective works well and produces the result that was intended 有效的；产生预想效果的 |
| You need effective communication within the organization. 你们需要在组织内部开展有效的交流。 |
| Humour is often far more effective than shouting. 幽默经常比大喊大叫有效的多。 |
| The troops should be deployed where they will be most effective. 部队应该部署在效果最佳的地方。 |
| +against The new vaccine is highly effective against all strains of the disease. 这种新疫苗对这种疾病的所有情形都非常有效。 |
| effective way/method/means This is a very effective way of controlling pests and weeds. 这是一个控制害虫与野草的有效办法。 |
| | 1a | attractive or impressive , and producing a definite effect 吸引人的；令人印象深刻的；效果不错的 | | The decorations are easy to make, yet very effective. 这些装饰品很容易做，且效果不错。 | |
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| 2 | formal when a law or agreement becomes effective , it officially begins to be used （法律）生效的 |
| +from Government ministers reached a 30-month agreement, effective from 1 July. 政府部长们达成了一项时效为30个月的协定，协定自7月1日起生效。 |
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| 3 | only before noun used for saying what the situation really is , although its appearance or official description might be different 实际的；事实上的 |
| The US military is in effective control of the entire region. 美国军方实际上控制着整个地区。 |
| | 3a | used for saying what is really having a particular effect , although other things may be involved in a situation 实际有效的 | | the effective agents in the spread of the disease 传播该疾病的实际途径 | |
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| DERIVED WORD |
| effectiveness noun U |
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| Words frequently used with effective | | effective 的常见搭配词 | | nouns | deterrent, intervention, means, mechanism, method, strategy, treatment, way, | 1 | | | |
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