guó​jì'ào​lín​pǐ​kè​shù​xué​jìng​sài

International Mathematical Olympiad

Senses

国际奥林匹克数学竞赛/ 國際奧林匹克數學競賽 guó​jì'ào​lín​pǐ​kè​shù​xué​jìng​sài International Mathematical Olympiad

the premier world championship mathematics competition for high school students

References

abbreviation 奥数/奧數 国际奥林匹克数学竞赛/國際奧林匹克數學競賽