Chadwick's sign
[医] 查德韦克氏征(妊娠四月后,尿道口下方的阴道粘膜出现紫色斑点)
🧩 词语组成解析
🗣️ 情景例句
I know. I heard you talking about it
我知道。我听到你们谈论的那件事了，
A great ship asks deep waters.
大船要走深水，蛟龙要在海中游。
There is a boat in the river.
小河里有一条船。