词组be busy with sth和be busy in doing有何区别

词组be busy with sth和be busy in doing有何区别 be busy with doing 和be busy in doing 在用法上有何区别如题 be busy doing sth和be busy with sth be busy (in) doing sth 和be busy with sth的意思 并做一组句子 有没有be busy with doing sth? be busy with 和 be busy doing sth 意思和用法有什么区别?知道的帮忙讲下, be busy doing 和 be busy in doing 的区别? be busy in doing sth be busy with sth 与be busy doing sth be busy with sth.be busy doing sth. be busy doing sth/with sth be busy with sth 与be busy doing sth的区别