Placenta praevia
[医] 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
No. She's at work now.
不在，她正在上班。
Who is going to have dinner?
谁要来吃晚餐？
The instrument was bought by my grandfather many years ago.
是我祖父在很多年以前买的。