spend on sth 等于spend doing sth

spend on sth 等于spend doing sth spend doing sth和spend on sth 有spend.on doing sth spend ...on(in) doing sth ---------------------------------- spend的用法spend 一般不就用在spend on sth 和spend (in) doing sth spend spend doing sth.和 spend on sth.有什么区别? spend on sth 和spend doing sth的意思 sb spend + doing sth spend doing sth. 1.spend st on doing sth;spend st doing sth;spend st to do st spend...on(in)doing sth.造句 spend st/sm on doing sth 造句