據守天險 jù shǒu tiān xiǎn

DEFINITIONS

  1. to guard a natural stronghold

CHARACTERS

據 jù to occupy, take possession of; a base
守 shǒu
HSK 5
defend, protect, guard, conserve
天 tiān
HSK 1
sky, heaven; god, celestial
險 xiǎn narrow pass, strategic point, dangerous