O字开头的单词或词组
odourone-wayoff-whiteone and onlyoverheadon the surfaceon callonce and for alloverplayoverflowingomissionolive oiloutdateordinateopticoutreachon one's way homeobtuseon creditoff the shelfoutseton fireon condition thatoutrightover driveOlympic Gamesopen one's eyes toOsakaobstruentoverhangotherwiseone wayoutdooutskirtsoliveorder numberobnoxiousobstructionon paperoutsourcingoscilloscopeoriginal character
