optic

adj [esp attrib 尤作定语] (fml 文) of or concerned with the eye or the sense of sight 眼睛的; 视觉的: the optic nerve, ie from the eye to the brain 视神经.

opportunism, opportunist, opportunistic, opportunity, oppose, opposed, opposite, opposition, oppress, oppress-ively, oppressed, oppression, oppressive, oppressor, opprobrious, opprobriously, opprobrium, ops, opt, opt out of, optical, optical art, optical illusion, optically, optician, optics, optimal, optimism, optimist, optimistic, optimistically, optimization, optimize, optimum, option, optional, optometrist, opulence, opulent, opus,