(past and past participle -spent /-ˈspent/)no obj.
1- spend too little花费太低, 支出过少。
1.1
- with obj. spend less than (a specified or allocated amount)花费少于（分配数额）：
schools have underspent their training budgets.
学校花的培训费低于预算。
in sing.
- an act of underspending支出结余：
areas in the year's budget where there has been an underspend.
今年预算尚有结余的领域。