occupational

a.与职业有关的，职业的

obtusely, obtuseness, obverse, obviate, obvious, obviously, obviousness, ocarina, occasion, occasional, occasional table, occasionally, Occident, Occidental, occlude, occult, occultist, occupancy, occupant, occupation, occupied, occupier, occupy, occur, occur to, occurrence, ocean, ocean lane, ocean-going, oceanarium, Oceania, oceanic, oceanography, ocelot, ochre (US also ocher), Oct, oct(o)-, octagon, octagonal, octane,