spend ...(in) doing 一般指花费时间做某事
I spent 2 hours in finishing this job.
He spent 10 minutes in listening to the music.
spend .on sth 一般指在某样东西上花费多少钱
I ofen spend some money on English books.(我经常在英语书上花钱)
spend ...(in) doing 一般指花费时间做某事
I spent 2 hours in finishing this job.
He spent 10 minutes in listening to the music.
spend .on sth 一般指在某样东西上花费多少钱
I ofen spend some money on English books.(我经常在英语书上花钱)