1 (wiktionary) 2 (zh.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.

CORE WORDS

HSK 1.0 (1992)
Big5
Gb
Pin
Eng

D
議定書

议定书

yi4ding4shu1

protocol

議  议 consult, talk over, discuss
定  定 decide, settle, fix
書  书 book, letter, document / writings

HSK 2.0 (2010)
Big5
Gb
Pin
Eng

HSK 3.0 (2022)
Big5
Gb
Pin
Eng