Membranacea placenta
[醫(yī)] 膜狀胎盤
?? 詞語組成解析
placenta
[pl?'sent?]
n. 胎盤，胎座;
??? 情景例句
You pick him up.
把他抱起來呀。
The bird that can sing and won't sing must be made to sing.
生來能唱的鳥，不愿唱也得叫它唱。
What are you doing?
你在干什么？