81. real, true
       
        real真的，真实的，指的是事实上存在而不是想象的，true真的，真正的，指的是事实和实际情况相符合 real gold, a true story
       
        82. respectful, respectable
       
        respectful尊敬，有礼貌，respectable可敬的，值得尊敬的 be respectful to the aged
       
        83. outwards, outward
       
        二者均可用作副词，表示向外，外面，outward还可用作形容词 an outward voyage
       
        84. pleasant, pleased, pleasing
       
        pleasant常用作定语，pleased, pleasing常用作表语，pleased主语常为人，pleasing主语常为物 a pleasant trip The trip is pleasing.
       
        85. understanding, understandable
       
        understanding明白事理的，能体谅的，understandable 可理解的，能够懂的 an understanding girl, an understandable mistake