Amniotic umbilicus
[医] 羊膜脐
🧩 词语组成解析
a. 羊膜的\\n[医] 羊膜的
n. 脐, 中心\\n[医] 脐
🗣️ 情景例句
Play it cool.
做事要冷静。
Fear is often greater than the danger.
杞人忧天。
Though he is young, he knows a lot.
尽管小，他懂得多。