"My name is Arnaud and I live in France. I am 15 years old. Do you want to correspond with me?"
Here's a breakdown:
* Je m'appelle Arnaud: This means "My name is Arnaud."
* et vis en France: This means "and I live in France."
* 15 ans: This means "15 years old."
* Veux-tu correspondre avec moi: This means "Do you want to correspond with me?"
So, this sentence is a simple introduction, letting someone know the speaker's name, age, location, and expressing interest in corresponding.