Hi Roro, You're quite right. In Spanish of Spain, effectively, the letter "C" followed by "E" or "I" is pronounced as in English "TH" and when followed by "A", "O" or "U" is pronounced as in English "K". I really hpe this helps you, Roro. Have great day!

sound like a letter s

Yes! In Spain that's right. Most of latin america is just like an S. Greetings! -Alejo

i hear video , that make d like th is that real ? or is that by spanish not latin ?