Blastocardia
[医] 胚斑(卵细胞核仁)
🗣️ 情景例句
Rock-a-bye, baby, on the tree top,
摇呀摇， 小宝宝， 在树梢，
When the police arrived, I was doing the housework.
当警察来的时候，我在做家务。
The woman who lives next door is a doctor.
隔壁住着的那个女人是医生。