Air sac
气囊气孔
🧩 词语组成解析
air
[ɛə]
n. 天空;气氛;空运;（简单易记的）曲调;
vt.& vi. 晾晒;烘干;播送;广播;
vt. 使房间通风， 透气;
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
I don't think there will be a problem, you can move in straight away.
我认为这没什么问题，你可以马上搬进来。
Parents usually put a small red paper packet under their child's pillow.
父母常常会在孩子枕头下放一个小红包。
After he has retired, he will devote himself to gardening.
他退休后，将致力于园艺。