be busy with sth.的应用

be busy with sth.的应用 be busy with sth be busy with sth be busy with sth的中文 be busy doing sth和be busy with sth这两个句式的意思和用法 be busy with sth 与be busy doing sth的区别 be busy doing sth和be busy with sth这两个句式的意思和用法, be busy with sth 与be busy to do sth的区别 be busy with sth 与be busy doing sth的区别 ,可以互换吗 be busy with sth 与be busy doing sth be busy with sth 和 be busy dong 有没有be busy with doing sth? be busy with sth.什么意思 关于一个疑惑的英语短语的区别be busy with doing sth和be busy doing sth区别? be busy doing sth/with sthbe busy doing sth 后跟动词be busy with sth 后跟名词麻烦谁能造个句子 he is always busy___ (work)是用be busy doing sth还是 be busy with sth be busy with sth.be busy doing sth.这两句怎么解释?两句意思是否一样? be busy doing sth和be busy with sth用法详细讲解