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
I have no time for extra-curricular activities.
我可没时间参加课外活动。
She told me she wanted to start a company.
她告诉我她想开公司。
But they suddenly became the parents of quintuplets,
但是他们出人意料生了个五胞胎，