irregularity
n
1 [U] state or quality of being irregular 不整齐; 不平坦; 无规律; 不规则; 不合常规.
2 [C] thing that is irregular 不整齐、 不平坦、 无规律、 不规则或不合常规的事物
the irregularities of the earth's surface 地球表面的凹凸不平
There were some irregularities in the accounts, eg figures that were not correct. 帐目中有些出入(如数字不确).
Men, particularly, spend hours of their leisure time installing their own fireplaces, laying out their own gardens; building garages and making furniture.