They are still grieving for their dead child.

　　他們還在為死去的孩子傷心。

　　Don't speak ill of the dead.

　　對死去的人，別說(shuō)他的短處。

　　We had come to a dead end in our research.

　　我們的研究工作已陷入絕境。

　　I'll never forget it to my dying day.

　　我將終生不忘。

　　I'm dying to know what happened.

　　我很想知道發(fā)生了什么事兒。