Cavum douglasi
[医] 直肠子宫陷凹
🧩 词语组成解析
n. 空腔(如耳腔)
🗣️ 情景例句
Oh, there's our table and benches.
哦， 那是我们的桌子和长板凳。
Did you go to the bank last night?
你昨晚去银行了吗？
Four days after setting out, while the Titanic was sailing across the icy water of the North Atlantic,
“泰坦尼克”起航后的第4天，它正行驶在北大西洋冰冷的海面上。