An instance of being imperfectly known or difficult to understand. 難于理解的不被清楚知曉或難于理解的例子
Imperfectly shaped or formed. 形狀或形式不完美的
Gradually disappearing; imperfectly or only slightly developed. Used of an organ or other part of an animal or a plant. 退化的逐漸消亡的; 沒有完全退化或進化程度微小的。用于指動物或植物的器官或其它部分
The lecturer said in conclusion that he had treated the subject only imperfectly. 演講者最后說，他只是簡略地談了談這個題目，很不全面。