Because these cells are among the largest in the vertebrate brain, they were the first neurons to be identified.

由于这些细胞是脊椎动物大脑中最大的细胞，它们是最早被识别出来的神经元。

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Today, biologists, using 21st-century tools to study cells and DNA, are beginning to understand how these plants hunt, eat and digest—and how such bizarre adaptations arose in the first place.

今天，生物学家利用21世纪的工具来研究细胞和 DNA，开始了解这些植物是如何捕食和消化的——以及这些奇异的适应性最初是如何产生的。

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The four new "daughter" cells, which appear at this stage, sit on top of the first four cells arranged in a square.

这个阶段出现的4个子细胞，在原来的4个细胞上方排列成正方形。

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He heads the first-ever clinical trial of umbilical cord stem cells with cerebral palsy patients.

VOA: special.2011.02.01

I said this sentence in one of the first two classes, 'all cells are the same', and you know that's true.

我曾在头两节课的哪里讲过,所有细胞都是一样的,你们知道的

耶鲁公开课 - 生物医学工程探索课程节选

The way we did this was to coax embryonic stem cells first to develop into the surface layer.

我们是这么做的,先诱导胚胎干细胞,发育成外胚层。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

The first distinct cells have formed, the weather service said.

CNN: Severe thunderstorms sweep the Mississippi Valley

Scientists at Stanford University School of Medicine have discovered that the millions of fat cells removed during liposuction can be easily and quickly turned into induced pluripotent stem cells, or iPS cells, more easily than the skin cells that researchers used when the first iPS cells were created in 2007.

CNN: Study: Human fat yields multipurpose stem cells

When the first iPS cells were developed two years ago in Japan and the United States, skin cells were reprogrammed to be able to have properties similar to a human embryonic stem cell.

CNN: Study: Human fat yields multipurpose stem cells