英语单词表示课程“subject”和“course”,有什么区别?答:84. pleasant, pleased, pleasingpleasant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, understandableunderstanding明白事理的,能体谅的,understandable 可理解的,能够懂的 an understanding girl, an understandable mistake86. ...