Papillary ducts
[医] 乳头管
🧩 词语组成解析
a. 乳头的, 乳突的\\n[医] 乳头的, 乳头状的
n. 通风管道；管道（duct的复数）
🗣️ 情景例句
When was it built?
它是什么时候建造的？
Teaching others teaches yourself.
教学相长。
All at once, I noticed that my wife seemed to be filled with alarm.
突然，我注意到妻子十分惊恐。