To stimulate the yew cells to keep growing continuously, the researchers have to prepare them the best "menu" --in other words, they must determine the most appropriate growth medium.
如何激發細胞潛力，讓其不斷生長，研究人員必須為紅豆杉細胞調配出最佳的「食譜」，也就是要掌握最適當的培養液。