有spend.on doing sth
有spend.on doing sth
spend doing sth.和 spend on sth.有什么区别?
spend on sth 等于spend doing sth
spend doing sth和spend on sth
spend ...on(in) doing sth ----------------------------------
spend money on doing sth 有这用法吗
spend on sth 和spend doing sth的意思
spend的用法spend 一般不就用在spend on sth 和spend (in) doing sth spend
spend...on(in)doing sth.造句
spend st/sm on doing sth 造句
1.spend st on doing sth;spend st doing sth;spend st to do st
be busy with sth.spend on sth.be busy doing sth.spend doing