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BNC: 17316 COCA: 13291

retardation

noun
/ˌriːtɑːˈdeɪʃn/
/ˌriːtɑːrˈdeɪʃn/
[uncountable] (formal)
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  1. the fact of making the development or progress of something slower 阻碍;减缓;使放慢速度synonym delay (2)
    • Many factors can lead to growth retardation in unborn babies.许多因素可以导致胎儿发育迟缓。

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