brooding

He was then brooding what to do.

他当时正沉思要做什么。

The hen is brooding her eggs.

母正在孵小。

It is not advisable just to sit there brooding about the unpleasant bygones.

坐在那里闷闷不乐地想着过去那些不愉快事情并不好。

What It Is: Post-dumpage, you're going to find yourself with a lot of time—time that's often spent getting misty over the past and brooding over what went wrong.

被抛弃后，你会突然发现你有了大量时间--你曾经用那些时间“穿”过往事间迷惘，想搞明白到底你错在哪里。