pole cell的用法和樣例：
例句
- The inpocketed vegetal pole cells develop into a sheet of cells which grows upward and eventually encloses a cavity, the archenteron.
內褶的植物極細胞生成一片向上生長的細胞，並最後圍成一個腔，即原腸。 - Most importantly, we found that light deprivation causes a delay rather than a permanent arrest of the bipolar cell maturation.
更重要的是，我們發現兔子出生后若無光照會延遲雙極細胞的發育，但不會使其成熟過程完全終止。
