电信专科学校

telecommunications school

• obligation
• obligatory
• oblige
• oblique
• obliterate
• oblivion
• oblivious
• oblong
• obloquy
• obnoxious
• oboe
• obscene
• obscure
• obsequies
• obsequious
• observable
• observance
• observant
• observation
• observatory
• observe
• obsess
• obsidian
• obsolescent
• obsolete