It is normal for a common student with ordinary education to make such a regular mistake on delivering offensive remarks.
normal,ordinary,regular,natural,typical
这些形容词均含“规则的,正常的,正规的”之意.
normal〓指不超过某种限度、符合某种标准或常规.
ordinary〓强调一般性和普通性,含不突出的意味.
regular〓指已有模式、有规律或定期的.
natural〓侧重某人或某物的行为符合其固有特性.
typical〓指个体能体现出群体的特征.