option

n.选择，选择权；(供)选择的事物

opprobriously, opprobrium, ops, opt, opt out of, optic, optical, optical art, optical illusion, optically, optician, optics, optimal, optimism, optimist, optimistic, optimistically, optimization, optimize, optimum, optional, optometrist, opulence, opulent, opus, or, or else, or rather, or so, oracle, oracular, oral, orally, orang-utan, orange, orange squash, orange-blossom, orange-coloured, orangeade, orate,