O开头的西班牙语词汇（4）

 opinar - to think

oponer - to oppose

opositar - to take a competitive examination

oprimir - to oppress, to press

optar - to opt

optimizar - to optimize

orar - to pray

ordenar - to tidy up, to sort out, to order

originar - to cause, to lead to, to appear

ornar - to adorn

ornamentar - to adorn