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！