air sac
英
美
- 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:
-
a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
-
any of the thin-walled extensions of the tracheae of insects
-
any of the membranous air-filled extensions of the lungs of birds
- 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。
- "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。
- 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。