The whole thing was an elaborate prank !

整个事情是一个精心制作的恶作剧！

One radio station prank took place on april fool 's day .

一家广播电台的恶作剧亦在愚人节上演。

At its most basic level , a pseudonym is a prank .

在最基本的层面上，笔名是个恶作剧。

Remind children that the punishment for a prank 911 call is serious .

提醒孩子：恶作剧打911的后果是很严重的。

And , she added , one brother calls her at 5 a.m. as a prank .

而且，她补充说，她的弟弟在早上5点打电话搞恶作剧。