主题：人艰不拆讲笑话 -- 骨头龙

Four insurance companies are in competition.

　 四家保险公司互相竞争。

　 One comes up with slogan: Coverage from cradle to grave.

　 一家想出了句口号：保险范围从摇篮到坟墓。

　 Second tries to improve on that with: Coverage from womb to tomb.

　 第二家想了想，来了个更进一步：保险范围从小穴到墓穴。

　 Not to be outdone third comes up with: From sperm to worm.

　 第三家不甘落后，拿出了个杀手锏：从精虫到喂虫。

　 Fourth really thought hard and almost gave up, but finally came up with:

　 From erection to resurrection.

　 第四家绞尽脑汁也想不出来，几乎就要放弃的时候，终于想出了一句：

　 从鸡勃到复活。