兩個名詞連埋一齊?

We cannot do this, but I have another two suggestions to you. We can use
1. The sth and the sth are...
e.g. The boy and the girl are fighting.
2. The sth (preposition) the sth is...
e.g. The colour of this cup is so colourful.
The students in this school is so naughty.