"You are at school."
Translation:Kamu ada di sekolah.
"Ada" is a word to describe existence. In English it may be equivalent to "there is/are" or "available". Here's some example of its use :
- Ada banyak guru di sekolah. Lit. translation : Exist. A lot. Teacher. At school (There are a lot of teachers at school)
- Bukunya ada dimana? Lit. translation : The book. Exist. Where? (Where is the book?)
- Masih ada satu kursi. Lit translation : Still. Exist/available. One. Chair/Seat. (There is one chair still available)
That'd be right. However the correct writing should be "di sekolah" (with space). You should distinguish between the word "di" (meaning at), and the prefix "di-" (which is used to transform verb; for example "di-" + "makan" (eat) = dimakan (eaten).
This, of course, only a problem in written form of the language