be busy doing还是be busy to dokuai

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bebusydoing还是bebusytodokuaibebusydoing还是bebusytodokuaibebusydoing还是bebusytodokuai简单说doing就是已经做了或正在做,

be busy doing还是be busy to dokuai
be busy doing还是be busy to do
kuai

be busy doing还是be busy to dokuai
简单说doing就是已经做了或正在做,而to do是还没有做

be busy with doing sth or by busy with sth 这里的with省略了,习惯用法 be busy doing 是固定词组的用法:相似的还有:be worth doing be

be busy doing sth.忙于做某事
be busy with sth.忙于做某事

be busy doing zheng强调正在做 be busy to do 强调将要做

be busy doing 忙于做某事

是be busy doing sth.和be busy with sth.以至于be busy to do sth.根本就没有。

be busy doing sth. 或者be busy at/with sth

be busy doing sth.忙于做某事
be busy with sth.忙于做某事
be busy with doing sth or by busy with sth 这里的with省略了,习惯用法

be busy doing sth 忙于做某事
be busy with 忙于某事
没有be busy to do

be busy to do是忙着要去做某事
be busy doing忙着在做某事

be busy doing sth忙于做某事,be busy to do sth不存在这个结构,谢谢