Mastoid sinuses
[医] 乳突窦, 乳突小房
🧩 词语组成解析
a. 乳头状的\\nn. 乳突
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
I thought he was retired
我原以为他退休了
You'd better run or you're going to be left behind.
你最好跑不然你将落在后面。
but custom, we have a way of thinking, is behaviour at its most commonplace.
至于风俗呢，只是些司空见惯的行为而已。