Nani? The couplet that no one had matched for a hundred years was cracked by a high school student

Tongcheng Middle School in Anhui Province is referred to as "Tongzhong", and there is a stone stele on the campus of Tongcheng Middle School with a pair of shanglian carved on it:

Kirito rings a brass bell, and boys and girls go to school together.

For a hundred years, no one in this league has been able to make a neat lower link.

Why? Because it has a double difficulty, the four words of "tong", "copper", "tong", and "tong" in the union are homophones and different words, which is the first layer of organs, and this layer of organs is easy to break. However, there is another layer of organs in the union, that is, "tong" and "copper" are composed of the head of the same side plus department, and the "bell" is composed of the head of the child side plus department (the traditional character "bell" of the bell is golden plus child) This layer of organs is not broken, it can only be said that it is only half right, to know that this union has not been suitable for a hundred years, it is difficult to be here.

When I was in high school, the Chinese teacher wrote this link on the blackboard, and I wanted to try it. After a lesson, I looked up the dictionary and felt as if I was right. I wrote it out and everyone helped me see it together.

During the ceremony, the monks and monks of the temple sat in meditation.

I think it's cracked, what do you think? Please give us a lot of advice, and do not hesitate to spare your valuable advice, thank you!