A:Do you know about All Fools' Day?你知道愚人节是怎么回事吗?
B:On that day,people play all kinds of tricks on others,and the one easily taken in is called April fool.那天人们互相捉弄,容易上当的叫四月傻瓜。
A:April fool!四月傻瓜!
B:April the first is coming.Be careful!四月一日就要到了,当心啊!