外层空间 wài céng kōng jiān

DEFINITIONS

  1. outer space

CHARACTERS

外 wài
HSK 2
out, outside, external; foreign
层 céng
HSK 3
story, layer, floor, stratum
空 kōng
HSK 3
empty, hollow, bare, deserted
间 jiān
HSK 2
midpoint, space; place, locality