欠缺

Bad manners savo(u)r a bad education.

礼貌欠缺示出缺乏教育。

In the teaching of Probability in senior high school lie obvious inadequacies in students' comprehension of Probability definition for Frequency and Equiprobability models.

高中概率学习中，学生对概率频率定典概型理解存欠缺。