Air sacs
[医] 肺泡
🧩 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;
n. （动植物组织中的）液囊( sac的名词复数 )
🗣️ 情景例句
Well, I guess. He does look a lot like Richard,
嗯 ，有点像。他确实很像Richard。
How long have you had this pain?
疼痛多久了？
The dogs have greater freedom, too, for they are allowed to wander outside their enclosure.
狗也比较自由，被放出围栏，四处遛达。