请问英语习惯用语是怎样的?请问英语的：spend…doing sth.做……花费.这句是不是英语的习惯用词啊?如果不是,能不是举个例子还例句的,

有消耗、用尽（力气或时间等）
spend a lot of care in doing sth在某事上花很多心血
spend all day writting

spend...(in) doing sth/spend...on sth

这是习惯用语.做...花费...,spend...(in) doing sth.比如:
I spent two hours (in)doing my homework last night.