of importance

重要，具有重要意义

odds-on, ode, odious, odiousness, odium, odometer, odor, odorous, odour, odour (US odor), odourless, odyssey, OECD, oecumenical, Oedipus complex, oesophagus (also esp US esophagus), oestrogen, of, of all time, of course, of itself, of late years, of necessity, of one's own, of the moment, of...importance, of...interest, of...value, off, off and on, off balance, off chance, off duty, off of, off(-), off-beat, off-cut, off-day, off-duty, off-grade,