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
The two sistes are very much alike.
这两姐妹长得非常相像。
Grasp the nettle and it won't sting you.
困难像弹簧，你硬它就软。
He was efficient in his work.
他工作效率高。