retardation
noun /ˌriːtɑːˈdeɪʃn/
  /ˌriːtɑːrˈdeɪʃn/
[uncountable] (formal)- the fact of making the development or progress of something slower synonym delay (2)
- Many factors can lead to growth retardation in unborn babies.
 
 
| 单词 | retardation | 
| 释义 | retardationnoun /ˌriːtɑːˈdeɪʃn/   /ˌriːtɑːrˈdeɪʃn/ [uncountable] (formal)
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