observation post
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 |
observation post /,ɔbzə:'veiʃn'poust/
danh từ
|