第三紀 dì sān jì

DEFINITIONS

  1. third period
  2. tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)

CHARACTERS

第 dì
HSK 2
sequence, number; grade, degree
三 sān
HSK 1
three
紀 jì record, annal, historical account