expend
/ɪkˈspend; ɪk`spɛnd/ v[Tn, Tn.pr]
~ sth (on/upon sth/doing sth) (fml 文)
1 spend, use (money, etc) in doing sth 花费, 使用（钱等）做某事
expend time, effort and money on a project 在一项目上花费时间、 精力和金钱.
2 use (sth) up; exhaust 用光（某物）; 耗尽
expend all one's ammunition, stores, fuel 用尽所有的弹药、 储备、 燃料.