niche cells的用法和样例：
例句
- One of the earliest responses of the lung is accumulation of water in the interstitial spaces and within the pulmonary cells.
肺的最早的反应之一是在空隙和肺细胞内的积水。 - That single cell contains the digital code to make thousands of other kinds of cells, from fat cells to bone cells -- from brain cells to lung cells.
这个单细胞包含的数字代码能做出成千上万的其他种类的细胞，即从脂肪细胞到骨骼细胞，从脑细胞到肺细胞。
