Be busy doing sth.

的意思都是“忙于做某事”。

Her mother is busy cooking in the kitchen. be busy doing sth.

忙着做某事（她的母亲正在厨房忙着做饭。）

The conviction of the parent was that I should be busy doing more important things rather than finding fault with an adolescent's vocabulary.

这名家长唯一确定的事情就是：我应该忙着做一些更重要的事情，而不是找一个未成年人用语方面的岔。

He knew I was not purposely being disobedient but that my flesh just wanted to be busy "doing something.

他知道我并不是故意去违背他的命令，但是我的身体就是冲动的想要‘做点什么’。

Certainly I didn't view it as such at the time - so busy was I trying to keep doing what I perceived 'needed to be done'.

当然，当时我并没有这样看待它——我忙着继续做那些我认为“需要做”的事情。