spend in doing还是 on doing
spend ...on(in) doing sth ----------------------------------
spend on与spend in doing区别
spend time后面+on doing还是spend time doing
spend in doing 和 spend on doing的区别
spend.on spend.in 与spend.doing的区别
spend...on(in)doing sth.造句
spend的用法spend 一般不就用在spend on sth 和spend (in) doing sth spend
plan( )doing,in还是on
spend time (on) doing sth 和spend time (in) doing sth
spend time in doing sth和spend time on doing sth的区别
有spend.on doing sth
spend…on /(in) doing sth.分别造句 配中英文