Happy April fool's day 愚人节快乐
音标：April [ˈeɪprəl], fool [ful]
愚人节也称万愚节、幽默节，愚人节。节期为公历4月1日，是从19世纪开始在西方兴起流行的民间节日，并未被任何国家认定为法定节日。
在这一天人们以各种方式互相欺骗和捉弄，往往在玩笑的最后才揭穿并宣告捉弄对象为“愚人”。玩笑的性质极少包含实质恶意，但个别玩笑由于开得过大而引起人们的恐慌，从而产生较大规模反响并且衍生成为（传媒）谣言和都市传说，所以对于人们来说一般会加以避免开如有关灾难之事的玩笑。
要切记过了4月1日晚上12点之后就不能再捉弄别人了，如若还是继续游戏，那么将会被认为是笨蛋哦！
愚人节快乐的英语读法——英 [ˈhæpi ˈeɪprəl fuːlz deɪ] 美 [ˈhæpi ˈeɪprəl fuːlz deɪ]
1582年，法国国王查理九世决定采用新改革的纪年法——格里高利历（即通用的阳历），以元旦为一年的开始，改变了过去以四月一日为新年的开端。
In 1582, Charles IX, the king of France, decided to adopt the Gregorian calendar (the general solar calendar), a new year's day as the beginning of the year, which changed the past from April 1 as the beginning of the new year.
但一些守旧派反对这种改革，依然按照旧的历法在这天送新年礼，庆祝新年。
But some conservatives opposed the reform, still according to the old calendar in this day to send a new year gift, celebrate the new year.
从此人们在4月1日便互相愚弄，成为法国流行的风俗。18世纪初，愚人节习俗传到英国，接着又被英国的早期移民带到了美国。
Since then, people have fooled each other on April 1, which has become a popular custom in France. At the beginning of the 18th century, the custom of April Fool's day spread to England, and then it was brought to America by early British immigrants.
Happy April fool's day
1、Happy April Fool's Day! Please don't get offended, this is meant only as a joke.
祝愚人节快乐！请不要生气，这只是个玩笑而已。
2、Today is your festival, I specially for you send sincere blessings: Happy April Fool's day!
今天是你的节日，我特地为你送上真诚的祝福：愚人节快乐！
3、Tomorrow is " April Fools' Day ", I wish you happy April Fools' Day !
明儿就是“愚人节”了。俺先祝您节日快乐！
4、At last, we want to wish you a happy April Fools' Day and a beautiful life!
最后，我们要祝你愚人节快乐，一个锦绣的人生！
英语：
1) Happy the Fool's Day.
2) Happy the April fool's day!
