Placenta praevia totalis
[医] 完全前置胎盘
🧩 词语组成解析
placenta
[plə'sentə]
n. 胎盘，胎座;
[医] 前置的, 在前的
🗣️ 情景例句
What subject did you major in university?
你在大学主修的科目是什么？
The doctor said I looked worried and nervous.
医生说我看起来太忧郁和紧张了。
We need them urgently.
我们急需这些资料。