be busy加什么?be busy是接doing sth还是to do sth?

be busy 加什么 be busy加什么?be busy是接doing sth还是to do sth? busy的用法be busy with后面加什么词be busy in doing与be busy with doing与be busy doing有什么区别 be busy doing等于什么 be busy (是甚么意思 be busy in 的用法?它和be busy doing, be busy with有什么区别? be busy 后面加动词的什么形式 BE BUSY 可以这么用吗?后面什么也不加? BE busy with 还是 BE busy to be busy in 用法 be busy doing造句 be busy with sth be busy with be busy with sth 翻译：be busy shopping She()(be)always busy be busy with英译汉 be busy中文意思