Pneumatization
n. [医](骨或其他组织中的)气腔形成
🗣️ 情景例句
from his new book entitled Family Album, U.S.A.
从他的新书Family Album, U.S.A.
He has a piece of cake.
他有一块蛋糕。
Practice dialogues like these.
这样练习口语。