I often go to the zoo on Children's Day.

儿童节我经常去动物园

It's a kind of children's day.

这是孩子们的节日。

I wish you a happy Children's Day!

祝你儿童节快乐！

Have a good time on Children's Day!

过一个愉快的儿童节！

Today is Children's Day.

今天是儿童节。

What day is the day of Children's Day?

儿童节是哪一天？