spend ...in doing sth这个in doing sth是什么语?

sb spend some time in doing sthsb.spend st./sm.(in) doing sth.造句 spend st in doing sth存在吗打错了，是spend sm in doing sth spend st/sm on doing sth 造句 spend in doing还是 on doing spend.on spend.in 与spend.doing的区别 spend in doing 和 spend on doing的区别 spend in doing和spend doing 的具体区别 spend ...in doing sth这个in doing sth是什么语? spend...on(in)doing sth.造句 spend ...on(in) doing sth ---------------------------------------------的区别 sb.spend time(in)doing sth. spend ...（in） doing sth怎么翻译 spend+时间或钱+in+doing sth. spend...in doing sth 啥意思 用spend (in) doing 造一句定语从句 spend time in doing sth和spend time on doing sth的区别 I usually spend them in doing等于spend them doing么 何时才用 spend…in doing,它和spend…doing有区别吗?