die的过去式只有died，表示死了很久，die只是短暂性的，故用has/have been dead
v.死;死亡;凋谢;消失;消亡;灭亡;停止运转
n.模具;冲模;压模
例句：
No one ever died of a broken heart.
从来没有人因为过度悲伤而死。
Two women are known to have died.
据悉两名妇女死了。
When my father died, Jim was a real support.
我父亲死后，吉姆成了真正的顶梁柱。
Her parents died a long time ago.
她的父母很早以前就去世了。
