O字開頭的單詞或詞組
one-eyedoverindulgenceoverblownone-stepon the alertoscobsequiousobstetricoratoryoversawoastopening balanceopinionatedordinarilyoperation manageron trialoomphoathsouter spaceobstructingOTDonrushoutpostovercrowdomnivorousoil paintoutlanderoppositelyon the fenceobscenityos1overarchon the jobocta-on recordovertime workout of useox.out of tuneoutrideonce too oftenoverstay
