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
I don't know what-to do.
我不知道怎么做。
The building of the new road has been held up by bad weather.
这条新马路的修筑因天气恶劣而受阻。
Can you read that.
看得清楚吗？