1. 動詞
   attenuate第三者單數現在式:
   不及物動詞:
   衰減
   減弱
   變稀薄, 變薄
   變細
   變小
   及物動詞:
   使...(反應、效力等)衰減
   使...(反應、效力等)減弱
   

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   同義字詞
   break,cheapen,depreciate,depress,devaluate,devalue,downgrade,lower,mark down,reduce,sink,write down,write off
   

例句

1. Water attenuates light by selective absorption.
2. Relearning Attenuates the Benefits and Costs of Spacing.
3. Alpha radiation attenuates in air within a couple of inches.
4. Absorption attenuates the secondary X-rays leaving the sample.
5. A second-order filter attenuates higher frequencies more steeply.
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