V.baer's cavity
[医] 贝尔氏腔, 囊胚腔
🧩 词语组成解析
🗣️ 情景例句
You can see many posters that are put up before the movie opens.
每部电影首映前你都会看到铺天盖地的海报。
You can't make something out of nothing.
巧妇难为无米之炊。
Excuse me. May I have a piece of paper, please?
请问，我可以要一张纸吗？