Placenta reflexa
[医] 反折胎盘
🧩 词语组成解析
placenta
[plə'sentə]
n. 胎盘，胎座;
[医] 包蜕膜
🗣️ 情景例句
without cultural programs in our school.
我们的学校里没有文化活动。
I was not aware that I was in danger.
我不知道自己处于危险中。
We enjoy staring at them, entranced as they go about their business, unaware (we hope) of our presence.
我们喜欢入迷地看它们做事，它们不知道（但愿如此）我们就在它们身边。