1) it's a symbolical day!"
今天是模范节呀!
2) Today is April Fools' Day.
今天是愚人节。
4) It's Children's Day today.
今天是儿童节,
5) Is it Children's Day today?
今天是儿童节吗?
6) Today is National day.
今天是国庆节。
参考词条