Translation of ultrasonido

Thank you for writting back so quickly. I learned English when I was a kid, because we've always been in England during summer vacation, since my grandma used to live there when she was still alive.
I want to briefly introduce myself: My name is Maria, I'm 39 years old and live in Madrid, Spain. My city is beautiful, I live with my lovely family and have many friends. See you soon.
I have already written some vocabulary lists on paper and typed in some of them here at Vocabulix. The automatic system here works better than flashcards on paper. Too bad there is no software.