通氣孔 tōng qì kǒng

DEFINITIONS

  1. an airvent
  2. a louvre
  3. airflow orifice

CHARACTERS

通 tōng
HSK 4
pass through, common, communicate
氣 qì air, gas, steam, vapor; spirit
孔 kǒng
HSK 6
opening, hole, orifice; great