labium anterius tubae auditivae中文什么意思

咽鼓管口前唇

• labium:    n. (pl. -bia ) 1.〔 ...
• tuba:    n. (pl. -s, -bae ) ...
• labium posterius tubae auditivae:    咽鼓管口后唇,咽鼓管圆枕