Embryonic knob
[医] 胚结
🧩 词语组成解析
knob
[nɑb]
n. 球形把手;（收音机等的）旋钮;小块;疙瘩;
v. 鼓起;使有球形突出物;给（门等）装球形把手;
🗣️ 情景例句
Who is your best man?
谁是你的伴郎？
Rear sons for help in old age; and store up grains against famine.
养儿防老。
So there were many people in the doctor's waiting room.
所以医生的候诊室里有很多人。