observational
observatory observe observed observer observing observingly obsess obsession obsessional obsessive obsessively obsessiveness obsidian obsidianal obsolescence obsolescent obsolescently obsolescentness obsolete obsoleteness obsoletism obstacle obstacle-race obstetric obstetrical obstetrician obstetrics obstinacy obstinate |
observational /,ɔbzə:'veiʃənl/
tính từ
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