愚人节是哪一天英语怎么说

April Fool's Day is celebrated on the 1st of April. Its origin is uncertain, but some historians believe that it dates back to the Roman festival of Hilaria, while others think it may have been connected to the change of the calendar in medieval times.

Example sentences in English:

Don't fall for any April Fool's Day pranks.
I'm planning a big April Fool's Day joke on my friends.

Example translations in Chinese:

别上当愚人节的恶作剧。
我正在计划一个愚人节的大玩笑，给我的朋友们。