Karyoblast
成核細胞, 核胚細胞
??? 情景例句
You must observe these simple rules.
你必須遵守這些簡單的規(guī)定。
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
I'm afraid that Jim will miss a lot of his lessons.
恐怕這么一來，吉姆要缺很多課了。