at his desk
He studies at his desk.
Don't eat at your desk.
He is at his desk.
Tom se sentó en su escritorio.
Tom sat down at his desk.
Tom está en su escritorio.
Tom is at his desk.
Don’t eat at your desk.
Empezó a dejar notas de amor en su escritorio.
He started leaving love notes on her desk.
Tom está en su escritorio comiendo un sándwich.
Tom is at his desk eating a sandwich.
Él estaba sentado en su escritorio con los ojos cerrados.
He was sitting at his desk with his eyes closed.