"Children's Day" in Engpsh is usually celebrated on June 1st.

The origins of Children's Day can be traced back to the 19th century when a German teacher named Richard Schirrmann estabpshed the first Children's Day in 1909 to celebrate the joys and rights of childhood. Since then, many countries around the world have followed suit and estabpshed their own Children's Day celebrations.

Here are some example sentences in Engpsh to celebrate Children's Day:

"Happy Children's Day to all the kids out there!"
"Let's make this Children's Day extra special for the young ones."
"Today is a day to celebrate the future of our world, the children."

And here are the Chinese translations:

"祝所有的孩子们儿童节快乐！"
"让我们为年轻人度过一个特别的儿童节。"
"今天是庆祝我们世界未来，孩子们的一天。"