What does the O in RO stand for, in

What does the O in RO stand for, in the context of eAthena?

ผลลัพธ์ (โปรตุเกส) 1:

O que O em RO significa, no contexto do eAthena?

ผลลัพธ์ (โปรตุเกส) 2:

O que a S em RO representam, no contexto do eAthena?

ผลลัพธ์ (โปรตุเกส) 3:

O que é o de ro significa, no contexto de eathena?