O字开头的单词或词组
objectionon paperout of controlon one's way homeopiumoxy-oppressiveof lateosteo-overjoyon topof the timeottooverstressoutside ofopaloxideoriginal characteropen one's eyes tooverworkopen-aironce a weekospreyon endone-upon the moveobviateoptimizingoppressionoverdueoverruleout of habitOregonocto-on one's toesOceanusobedienceoutboundobscurityoverdraftoxidativeon leave
