orthocentre
orthocentric orthocephalic orthocephalous orthocephaly orthochromatic orthoclase orthocomplement orthodontia orthodontic orthodontics orthodontist orthodox orthodoxy orthodromic orthoenteric orthoepic orthoepist orthoepy orthoevolution orthogamous orthogamy orthogenesis orthogenetic orthogenic orthognathic orthognathism orthognathous orthogonal orthogonality |
orthocentre
danh từ
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