国际数学联盟

International Mathematical Union

surname Guo

country / nation / state / national / CL:個|个[ge4]

international

border / edge / boundary / interval / between / inter- / to meet / time / occasion / to meet with (circumstances)

to count / to count as / to regard as / to enumerate (sb's shortcomings)

number / figure / several / CL:個|个[ge4]

frequently / repeatedly

mathematics / mathematical

to learn / to study / to imitate / science / -ology

to ally / to unite / to join / (poetry) antithetical couplet

alliance / union / coalition

oath / pledge / union / to ally / league, a subdivision corresponding to prefecture in Inner Mongolia