air sac

英 美
  • 气囊
  • air n.空气;天空;空中;感觉;神态;曲调;装腔作势v.晾干;使通风;广播
  • sac n.囊;液囊
Noun:
  1. a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways

  2. any of the thin-walled extensions of the tracheae of insects

  3. any of the membranous air-filled extensions of the lungs of birds

    1. Air bags are a standard feature in most new cars.
      气囊是绝大多数新车具有的基本特点。
    2. "A sweet temper" is a figurative expression, but "sweet coffee" is not.
      "甜蜜的性情"是个比喻的说法,而"甜咖啡"则不是。
    3. Oxygen and carbon dioxide from the air enter through the stoma.
      氧和二氧化碳从空气中进入气孔。