joke
英 [dʒəʊk]   美 [dʒoʊk]  
n.
笑话;玩笑;荒唐可笑的人(或事物、局面);笑料;笑柄
v.
说笑话;开玩笑;闹着玩;说着玩

例句：
It's no joke trying to find a job these days. 

这些日子想找工作可不是件容易事。

His first joke got the biggest laugh of the night. 

他讲的第一个笑话博得了当晚最开怀的笑声。

They often joked about all the things that could go wrong. 

凡是可能出错的事他们都常拿来开玩笑。

That joke's been done to death. 

这个笑话都听腻了。

He seemed to regard the whole thing as a joke. 

他似乎是把整件事当成玩笑。