Fool’s Day还是Fools’s Day

Fool’s Day还是Fools’s Day April fool's day 还是 April fools' day 到底是April Fool's Day 还是April Fools'Day? 愚人节 是April Fool's Day 还是April Fools' Day 愚人节的英语是April Fool's Day还是April Fools' Day还是April fools Day 为什么用April Fool's day而不是April Fools’ day? 愚人节的英语怎么说是April Fools' Day还是April Fool's Day 愚人节英语怎么说是April Fools' Day还是April Fool's Day 或者两个都可以 愚人节正确书写：April fool's day 还是 April fools' day 愚人节是译成April Fools'Day 还是April Fool's Day "fool's day“和"fools' day"哪个正确?或者是有什么区别? fool s day 歌词