defectiveness什么意思解释？

I use a word to come to polish defectiveness concealing.莪用个个词组来修饰那些隐藏悳残缺.Clinical cretinism results in an extremely high degree of mental defectiveness and impairment.克汀病导致精神缺陷和障碍的高发病率.Devalues the Products according to ...

defectiveness的音标：defectiveness的英式发音音标为：[dɪ'fektɪvnəs]defectiveness的美式发音音标为：[dɪ'fektɪvnəs]...