non-attend·ance
noun/ˌnɒn əˈtendəns/
/ˌnɑːn əˈtendəns/
[uncountable]- failure to go to a place at a time or for an event where you are expected
缺席；不出席；不到场 - the problems of children’s non-attendance at school
儿童缺课问题
- the problems of children’s non-attendance at school