| 释义 |
- See also
{{wiktionary|0-0}}0-0 or O-O may refer to: - Emoticon for a person who wears glasses
- An informal instruction to watch the conductor of an orchestra, seen in orchestral parts
- Kingside castling in chess notation
- Nothing from Nothing (disambiguation), songs
- Object Oriented Programming, a style of modern computer programming
See also - 00 (disambiguation)
- Division by zero
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