Ectochorion
外绒(毛)膜
🗣️ 情景例句
I'm thrilled for you, Grandpa.
我真为你兴奋， 爷爷。
I wouldn't, if I were you.
要是我就不会。
The two boys carried the man to the school gate keeper's room.
两个男孩将那个人抬到了学校门卫的房间。