| 单词 | retardation |
| 释义 | retardation UK [ˌri:.tɑ:'deɪ.ʃən] US [-tɑ:r-] formal noun uncountable ■slow development, or development which is slower than it should be 迟缓；阻滞；延迟 •Severe iron deficiency can cause developmental delay and growth retardation.严重缺铁会导致发育迟缓。 |
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