质的飞跃 zhì de fēi yuè

DEFINITIONS

  1. qualitative leap

CHARACTERS

质 zhì
HSK 4
matter, material, substance
的 de
HSK 1
possessive, adjectival suffix
飞 fēi
HSK 1
fly; go quickly; dart; high
跃 yuè
HSK 5
skip, jump, frolic