呼吸系统 hū xī xì tǒng

DEFINITIONS

  1. respiratory system

CHARACTERS

呼 hū
HSK 4
breathe sigh, exhale; call, shout
吸 xī
HSK 4
inhale, suck in; absorb; attract
系 xì
HSK 1
system; line, link, connection
统 tǒng
HSK 5
govern, command, control; unite