dead的动词和名词

例句：

They are still grieving for their dead child.

他们还在为死去的'孩子伤心。

Don't speak ill of the dead.

对死去的人，别说他的短处。

We had come to a dead end in our research.

我们的研究工作已陷入绝境。

She's dead set on getting this new job.

她打定主意要得到这个新工作。

She could be dead for all I know.

她说不定已经死了。