首字母 a b c d e f g h i j k l m n o p q r s t u v w x y z

o开头的英语单词、第一个字母是o的英语词组有哪些

old-fashioned Olympian opening ceremony organizer overwhelmed oilfield observational official-looking oil painting open the floor overdevelop overeating on that basis overweight oaf oat obstetrics offence(-se) officinal oncology opium ophthalmology oppression optics organelle orthopedics osteoma otitis otorhinolaryngology ovary overactivity overcast oversleeve ovum Oh,dear! Olympics orange juice one hundred opera house Ottawa orgy oceanarium overheads overwhelmingly officially oarfish overfish oil rig overalls originally oddly ominously overbalance overpopulated over-industrialized organically-grown offender observant over-zealously ombudsman obstinately ow oblong on account to off-hand offshore on good terms with sb. oncoming ongoing onlooker orientate oneself orientate out of line with outcast outcry outdated outdo outlaw outlying outright overrun of the period on a daily basis on the urban scene on the heavy side of all time on the bottom on hard times on the other side on the battlefield of special note on an equal base with object lesson over the horizon over millennia of the day off course oil refining only that over time operational mine organic food or whatever on various occasions original version originate from order of magnitude on their way open ended oblivion obsolescence obtrusive omen optimal outburst outrageous out-tray outage organ donor on and off outpatient of itself on the basis of obligee obligor offeree offerer open-end opportunity cost out-of-stock outward(s) overdraft overdraw overproduction overvalued objurgate opalescent ostentatious ornithologist open an account openly on diet overland overleaf Only joking out there Olympic Games on land oak tree Oh dear orbital overpopulation oily Oolong tea ordering on a scale on a diet on cue on and on on demand on file on edge on line on loan observer on no account of no account of a kind odds and ends of late of necessity of note of sorts off balance off duty off the air off the hook off the record on the run on the shelf on the side on the spur of the moment on the strength of on the table on the trot on thin ice on top on top of once and for all on order on paper on record on the quiet on that score on the grounds of on the alert on the air on the button on the go on the average