Choriogenesis
[医] 绒[毛]膜发生
🗣️ 情景例句
And I am a hard worker when I have something challenging to do.
并且在遇到挑战性的工作时，我是个很努力的人。
John could not decide when to leave.
约翰无法决定几时要出发。
Fish love swimming round the rocks and through holes in them.
鱼喜欢绕着岩石和穿石洞游水。