Blastocysts
(blastocyst 的复数) [医] 胚泡
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
There must be someone behind the door.
门后必然有人在。
for the simple reason that I was left with several curiously shaped bits of metal which did not seem to fit anywhere.
原因很简单，因为还剩下几个形状奇特的零件似乎哪里也装不上去。