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

A
忽然

忽然

hu1ran2

suddenly/ all of a sudden

HSK 2.0 (2010)
Big5
Gb
Pin
Eng

4

忽然

hu1 ran2

suddenly/ all of a sudden

HSK 3.0 (2022)
Big5
Gb
Pin
Eng