Chorion
n. 絨毛膜, 漿膜, 卵殼\\n[醫(yī)] 絨[毛]膜
??? 情景例句
Oh, I'm glad that's over.
噢 我真高興終于結束了。
I haven't seen you for ages.
好久沒見了。
It repeated these circles over and over again.
它首先向右飛一個圓圈，然后向左飛一個圓圈。