The companion cells are the little guys scattered throughout the larger phloem cells.

伴生细胞是分散在较大韧皮部细胞中的小细胞。

She pointed to the door of a large open cell and said, Sit. Wait.

“坐下，等着。”

Histologically, prominent features include large, round tumor cells resembling germline tumors; or small cells forming Homer-Wright rosettes.

松果体瘤主要的组织学特征包括类似生殖细胞肿瘤中巨大圆形的肿瘤细胞，或是形成Homer-Wright菊形团的小细胞。

Throughout your life, your bones are broken down by large cells called osteoclasts, releasing calcium into the bloodstream.

在您的一生中， 您的骨骼会被称为破骨细胞的大细胞分解，从而将钙释放到血液中。

The real story about this facility is not that it's the largest test cell in the world but it's what it represents.

关于这个设备的真实情况并不是它是世界上最大的测试单元，而是它所代表的东西。

The name respiratory syncytial virus comes from the virus causing cells lining the respiratory tract to merge, forming a large multinucleated " cell" called a syncytia.

呼吸道合胞病毒的命名源于该病毒会造成呼吸道内膜的细胞融合，形成多核巨“细胞”——合胞体。

Let that sink in – a tiny virus is taking over and killing lung cells up to 500 times larger than itself, with the help of a tiny protein weapon.

病毒侵入了细胞——这种微小病毒正在侵蚀并杀死比自身大500倍的肺细胞，这是在一种微小蛋白质武器的帮助下完成的。

The head of the FBI in the United States says the investigation into a man accused of bombing targets in New York and New Jersey does not point to a larger terror cell.

美国FBI局长表示，对纽约和新泽西爆炸案嫌疑人进行的调查并未表明存在更大的恐怖网络。

Now, there are some exceptionally large cells that have adapted to cheat the system, like the body's longest cell, a neuron that stretches from the base of the spine to the foot.

现在，有一些特别大的细胞已经适应了欺骗系统，比如身体最长的细胞，一个从脊柱底部延伸到脚的神经元。

And we know that this happened for a bunch of different reasons, from similarities in chloroplasts' and bacteria's DNA, to chloroplasts' two membranes, which support the theory that they were once engulfed by a larger cell.

我们知道发生这种情况有很多不同的原因，从叶绿体和细菌 DNA 的相似性，到叶绿体的两层膜，这支持了它们曾经被一个更大的细胞吞没的理论。